Pitt knows the drill – it's all about building community – as he volunteers for Habitat for Humanity. Plus: Justin plays host, K-Fed performs and more

STAGE MAGIC

Call him the caped crusader! Kevin Federline swoops onstage for a performance at the KIIS-FM/West Hollywood Halloween carnaval on Tuesday, the same day the rapper released his debut album, Playing With Fire. Of his music, Federline told PEOPLE: "It's something I believe in and I'm going to fight for it. I'm just another artist that's having to pay his dues."



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