Mariah Carey Sings 'Infinity' at Billboard Awards 2015! (Video)

Mariah Carey hits the stage for her performance at the 2015 Billboard Music Awards held at the MGM Grand Garden Arena on Sunday (May 17) in Las Vegas.

The 45-year-old entertainer kicked off her performance with her classic song “Vision of Love” before segueing into her current single “Infinity.” Watch the video below!

PHOTOS: Check out the latest pics of Mariah Carey

Earlier in the night, Mariah hit the red carpet in a sexy black dress.

FYI: Mariah is wearing a Yousef Al Jasmi dress and Tom Ford shoes.