Perrypalooza, Bare In Vegas, one-off parties are as rare as unicorns. Perrypalooza, Perry Farrell’s star-studded 50th-birthday bash, is one exception. A revolving concert of rock legends, the party ended with Billy Idol, Dave Navarro, Debbie Harry, Juliette Lewis and more playing backup to Farrell, in an all-hands-on-deck cover of the Stones’ “Sympathy for the Devil.”

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