Haim, Katy Perry Plot 'SNL' Musical Performances

Haim and Katy Perry will serve as musical guests on Saturday Night Live's ongoing 42nd season. The Haim sisters will perform on the May 13th episode hosted by Melissa McCarthy, and Perry will follow on the May 20th episode with Dwayne "The Rock" Johnson. Saturday Night Live announced the bookings Wednesday with a Twitter photo featuring the show's line-up on a cork board. The image also confirms the May 6th episode, featuring LCD Soundsystem (in their SNL debut) alongside host Chris Pine. Though