and Lady Gaga

Billboard 200 Artist and Top Artist. Her single “Rolling in the Deep” is up for awards in seven categories. Rihanna has been nominated for 13 while Lady Gaga earned 10 noms. Also up for some awards: Lil’ Wayne in 10 categories and Party Rock peeps LMFAO in 17 categories. Other artists nominated include Katy Perry, Justin Bieber, Bruno Mars, Nicki MInaj and Chris Brown. The Billboard Music Awards will take place in Vegas on May 20.