Roger Waters headlined the Music Heals benefit concert in D.C. this weekend, and he brought out special guests Billy Corgan, Tom Morello and G.E. Smith for the performance.

The concert supports MusicCorps, a nonprofit that connects musicians with wounded veterans who want to learn how to write, play and record music. The MusiCorps Wounded Warrior Band also joined Waters and company onstage, and together they played Pink Floyd’s “Comfortably Numb” and Bob Dylan’s “Forever Young.”

On the former, Waters tackled the verses while Corgan and Tim Donley, a Marine and member of the MusiCorps band, delivered the chorus. Check out both performances below:

This isn't Morello's only one-off, all-star supergroup as of late. The Rage Against the Machine guitarist teamed up with Blink-182's Mark Hoppus and Mumford and Sons to play Blink's "What's My Age Again?" during a private show in L.A. Morello also covered Bruce Springsteen's "Ghost of Tom Joad" at the gig.

Corgan, meanwhile, recently deleted his Twitter to pursue his new "People and Their Cars" blog.

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