Katy Perry is reportedly struggling with ticket sales for The Lifetimes Tour, especially in smaller U.S. markets.

Singer also talks failed Daft Punk collaboration, inspiring Heath Ledger's Joker, and why he doesn't like Lady Gaga "as a ...

Jason later formed the band Bonham and released two albums, 1989’s The Disregard of Timekeeping and 1992’s Mad Hatter. He ...