Mariah Carey is determined to have “a really good time” with her Las Vegas residency. The 55-year-old star has extended her Celebration of Mimi residency until February 2025, and Mariah has now revealed what fans can expect when they walk through the doors of Dolby Live in Sin City. Mariah told ‘Entertainment Tonight’: “It’s a really good time. “We’re doing The Celebration of Mimi and you know all about the ‘Emancipation of Mimi’ and that album and there’s also other songs we do. But this is really about, you know, The Celebration of Mimi.” Mariah loves performing songs from her ‘Emancipation …