Justin Bieber Back at Billboard Awards – One Year After 'The Kiss'

It was the lip-lock at the Billboard Music Awards last year that confirmed all those rumors about Justin Bieber and Selena Gomez

Now, the "Boyfriend" crooner, 18, who got that celebratory smooch from Gomez after he took the top new artist honor, will be back this year for the show in Las Vegas as a performer. 

The Biebs joins Carrie Underwood and LMFAO in taking the stage Sunday, May 20, at the MGM Grand for the awards which air live at 8 p.m. ET on ABC.