Conversation so far:
what was the depth of brad delp?
On March 9, 2007, lead singer Delp committed suicide at his home in Atkinson, New Hampshire.
Police found him dead in his master bathroom.
why did he kill himself?
CANNOTANSWER.
anything interesting about the article?
A concert in honor of Delp named "Come Together: A Tribute to Brad Delp" occurred on August 19, 2007.

Question: who performed?
Self-contained rewrite: Who performed in "Come Together: A Tribute to Brad Delp"?