THE BUZZ: Mariah Carey is heading to Sin City

Caesars Palace announced yesterday that the 44-year-old pop icon would open a series of shows May 16 at The Colosseum in Las Vegas. Carey has announced 18 performances, so far. The show, dubbed “MARIAH CAREY #1s,” will feature the singer performing her 18 No. 1 singles, which include “We Belong Together,” ‘’Hero” and “Vision of Love.” She is one of the all-time best-selling acts in music. Carey’s announcement came after a so-so year for the multiplatinum, Grammy-winning star. Her latest album, “Me. I Am Mariah… The Elusive Chanteuse,” was a commercial flop and she was criticized for her vocal performance during her recent tour.