The Berklee College of Music celebrated music legends Willie Nelson, Carole King and Annie Lennox during its commencement at the Boston school on Saturday.

Lennox, a singer and member of the duo Eurythmics, was Berklee’s commencement speaker, addressing the largest graduating class in the college’s history — 1,050.

Each of the Grammy-award winning singers received honorary music degrees from Berklee, making them all “doctors.”

“I was going to ask them if I could write my own medication,” the 80-year-old pro-pot Nelson joked to the Boston Globe. “Probably not, but it doesn’t hurt to ask.”

On Friday, Nelson joined singer Kris Kristofferson on stage at the school’s annual commencement concert, where they performed Hank Williams’ “Jambalaya (On the Bayou).” Nelson, King and Lennox all performed some of their best-known tunes as well, according to a news release from the school. Nelson sang with Berklee’s student orchestra in a Big-Band arrangement of one of his earliest hits, “Night Life,” Rolling Stone reported.

As CBS News notes, the Berklee campus is just four blocks from the site of the April 15 Boston Marathon bombing. Like other Boston-area colleges, Berklee was on lockdown for much of the week leading up to the capture of Dzhokhar Tsarnaev, the 19-year-old suspect in the attack. Some Berklee students turned to music after the bombing to cope.

“Music is cathartic, it’s cathartic,” Lennox told CBS. “They realize that when they use music in music therapy that people that are locked up in some kind of inability to express themselves for whatever reason, that music, music is a great, healing and connecting factor, bringing people out.”

Check out photos from the Berklee commencement in the slideshow below:

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  • 2013 Berklee College Of Music Commencement Concert

    Willie Nelson performs during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    (L-R) Willie Nelson and Kris Kristofferson perform during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Berklee College of Music students perform during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Kris Kristofferson perform during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Kris Kristofferson perform during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10, 2013 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Carole King attends the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Willie Nelson performs during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10, 2013 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Willie Nelson performs during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10, 2013 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Berklee College of Music students perform during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Willie Nelson performs during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Berklee College of Music President Roger Brown (L) Lawrence Simpson and Kris Kristofferson (R) confer an Honorary Doctor of Music Degree on WIllie Nelson (C) take part in the 2013 Berklee College Of Music Commencement Ceremony at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Willie Nelson (C) receives an Honorary Doctor of Music Degree during the 2013 Berklee College Of Music Commencement Ceremony at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Willie Nelson receives an Honorary Doctor of Music Degree during the 2013 Berklee College Of Music Commencement Ceremony at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Willie Nelson receives an Honorary Doctor of Music Degree during the 2013 Berklee College Of Music Commencement Ceremony at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Willie Nelson receives an honorary doctor of music degrees during the 2013 Berklee College Of Music Commencement at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Willie Nelson receives an honorary doctor of music degrees during the 2013 Berklee College Of Music Commencement at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Willie Nelson receives an honorary doctor of music degrees during the 2013 Berklee College Of Music Commencement at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Berklee College of Music President Roger Brown (L) Lawrence Simpson and Kris Kristofferson (R) confer an receive honorary doctor of music degree on Willie Nelson during the 2013 Berklee College Of Music Commencement at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Willie Nelson (L) and Carole King (R) receive honorary doctor of music degrees during the 2013 Berklee College Of Music Commencement at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Willie Nelson receives an honorary doctor of music degree during the 2013 Berklee College Of Music Commencement at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Willie Nelson (L) and Carole King receive honorary doctor of music degrees during the 2013 Berklee College Of Music Commencement at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Berklee College of Music Senior Vice President Lawrence Simpson (L) and Berklee President Roger Brown (R) confer an honorary doctor of music degree on Carole King (C) during the 2013 Berklee College Of Music Commencement at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Berklee College of Music Senior Vice President Lawrence Simpson (L) and Berklee President Roger Brown (R) confer an Honorary Doctor of Music Degree on Carole King (C) during the 2013 Berklee College Of Music Commencement at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Atmosphere during the 2013 Berklee College Of Music Commencement Ceremony at Berklee College of Music on May 11, 2013 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Berklee College of Music President Roger Brown (L) Lawrence Simpson and Kris Kristofferson (R) confer an Honorary Doctor of Music Degree on WIllie Nelson (C) take part in the 2013 Berklee College Of Music Commencement Ceremony at Berklee College of Music on May 11, 2013 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Willie Nelson receives an Honorary Doctor of Music Degree during the 2013 Berklee College Of Music Commencement Ceremony at Berklee College of Music on May 11, 2013 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Atmosphere during the 2013 Berklee College Of Music Commencement Ceremony at Berklee College of Music on May 11, 2013 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Berklee College of Music Senior Vice President Lawrence Simpson (L) and Berklee President Roger Brown (R) confer an Honorary Doctor of Music Degree on Carole King (C) during the 2013 Berklee College Of Music Commencement Ceremony at Berklee College of Music on May 11, 2013 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Atmosphere during the 2013 Berklee College Of Music Commencement Ceremony at Berklee College of Music on May 11, 2013 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Atmosphere during the 2013 Berklee College Of Music Commencement Ceremony at Berklee College of Music on May 11, 2013 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Atmosphere during the 2013 Berklee College Of Music Commencement Ceremony at Berklee College of Music on May 11, 2013 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    At the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Atmosphere during the 2013 Berklee College Of Music Commencement at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Berklee College of Music President Roger Brown (L) Lawrence Simpson and Kris Kristofferson (R) confer an Honorary Doctor of Music Degree on WIllie Nelson (3rd R) 2013 Berklee College Of Music Commencement at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Berklee College of Music President Roger Brown speaks during the 2013 Berklee College Of Music Commencement where honorary doctor of music degrees were conferred on Willie Nelson, Annie Lennox and Carole King at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Carole King receives an Honorary Doctor of Music Degree during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Berklee College of Music President Roger Brown (L) Lawrence Simpson and Kris Kristofferson (R) confer an Honorary Doctor of Music Degree on WIllie Nelson (C) during the 2013 Berklee College Of Music Commencement Ceremony at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Carole King receives an Honorary Doctor of Music Degree during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Kris Kirstofferson (3rd L) attends the 2013 Berklee College Of Music Commencement where honorary degrees were conferred on Willie Nelson, Annie Lennox and Carole King at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Student Nicole Olver speaks during the 2013 Berklee College Of Music Commencement at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Kris Kristofferson (3rd L) attends the 2013 Berklee College Of Music Commencement where honorary degrees were conferred on Willie Nelson, Annie Lennox and Carole King at Berklee College of Music on May 11 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Carole King receives an Honorary Doctor of Music Degree during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement

    Carole King receives an Honorary Doctor of Music Degree during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Berklee College of Music students perform during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Berklee College of Music students perform during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Berklee College of Music students perform during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Kris Kristofferson perform during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Berklee College of Music students perform during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Willie Nelson performs during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Kris Kristofferson attends the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)

  • 2013 Berklee College Of Music Commencement Concert

    Berklee College of Music students perform during the 2013 Berklee College Of Music Commencement Concert at Berklee College of Music on May 10 in Boston. (Photo by Paul Marotta/Getty Images)