Mariah Carey Flashes CLEAVAGE & UNDERWEAR During Vegas Concert ! br Mariah Carey brushed off an embarrassing wardrobe malfunction as she kicked off her Las Vegas residency on Wednesday night. The Hero hitmaker debuted her Mariah¥1 to Infinity show at The Colosseum in Caesars Palace and ran through all 18 of her chart-topping hits in chronological order, including Hero, Dreamlover and We Belong Together.