Musician Ricky Martin arrives at the 2014 Billboard Music Awards in Las Vegas, Nevada May 18, 2014 holding up a sign referring to the girls kidnapped in Nigeria. REUTERS/L.E. Baskow
Singers Miranda Lambert (L) and Carrie Underwood perform “Somethin’ Bad” onstage at the 2014 Billboard Music Awards in Las Vegas, Nevada May 18, 2014. REUTERS/ Steve Marcus
Jennifer Lopez performs “We Are One” at the 2014 Billboard Music Awards in Las Vegas, Nevada May 18, 2014. REUTERS/Steve Marcus
Ricky Martin performs “Vida” at the 2014 Billboard Music Awards in Las Vegas, Nevada May 18, 2014. REUTERS/Steve Marcus
Singer Lorde performs at the 2014 Billboard Music Awards in Las Vegas, Nevada May 18, 2014. REUTERS/Steve Marcus
Musician Shakira performs “Empire” onstage at the 2014 Billboard Music Awards in Las Vegas, Nevada May 18, 2014. REUTERS/Steve Marcus