The music world went into heavy mourning when metal titan Ozzy Osbourne died in July at the somehow-still-too-young age of 76. As he was frontman for Black Sabbath, the single most important band in the history of his field, and a solo artist in his own right, tribute concerts large and small have been happening ever since. Osbourne died with Parkinson’s disease, so heavy Austin pays tribute to the man with a Parkinson’s Foundation benefit show starring Zach Black, Montaz, Cell Saga, Sailor Poon, and a Billie Buck DJ set. Come worship, fanatics; you have nothing to lose but your souls. – Joe Gross