Mariah Carey Kicks Off Las Vegas Residency at Caesars Palace!

Mariah Carey rocks a variety of outfits as she hits the stage at the opening night of her Mariah #1 To Infinity Las Vegas Residency held at The Colosseum at Caesars Palace on Wednesday (May 6) in Las Vegas.

The 45-year-old entertainer journeyed through her 18 number one hits including “Always Be My Baby,” “Heartbreaker,” and more before closing the show with her new single “Infinity.”

PHOTOS: Check out the latest pics of Mariah Carey

“Infinity” is the sole new track from her upcoming greatest hits compilation #1 To Infinity, which hits stores on May 18th!

“Cheers!! Opening night!! Thank you everyone!!! #1toInfinity,” Mariah tweeted.

15+ pictures inside of Mariah Carey performing at the opening night of her Las Vegas residency…