Proceeds raised by the FireAid benefit concert will help those affected by the wildfires by raising money "for rebuilding communities devastated by wildfires and supporting efforts to prevent future ...

Katy Perry could really hear her fans 'Roar' last night ... probably screaming out in horrible pain -- 'cause one of them ...

Katy Perry left American Idol behind, and there was speculation that things were not good between her and her co-stars behind ...