Lady Antebellum, Keith Urban Join Billboard Music Awards Lineup

Lady Antebellum and Keith Urban will perform at the 2011 Billboard Music Awards on May 22 in Las Vegas. Rihanna, the Black Eyed Peas, Jennifer Lopez and Taio Cruz will also perform during the ceremony which will air live on ABC. The full list of nominees across a variety of genres will be revealed Wednesday morning (April 13). According to the music industry publication, the awards are based on numerous factors, such as sales, airplay, touring, streaming and social interaction, from Feb. 28, 2010 through March 1, 2011.