Pitbull, Christina Aguilera, Macklemore and Ryan Lewis, Selena Gomez, the Band Perry and Kacey Musgraves have joined the star-packed performance lineup for the May 19 ceremony, which already includes Prince, Justin Bieber, Taylor Swift, Bruno Mars and Miguel. The latter quartet will join Pitbull and the Band Perry in vying for the Milestone Award, a fan-driven honor that one voter will get to present at the show alongside Cee Lo Green.
Source: Billboard
