This singer was already legendary before she completely reinvented herself and dropped a new album 15 years ago, and she is marking the time that has passed with some beautiful singing from the comfort of her own home.Mariah Carey is continuing tocelebrate the 15th anniversary of her acclaimed 10th studio album The Emancipation Of Mimi, which shereleased through Island Recordson April 12, 2005, by doing what she does best: singing.On Thursday morning, the newly 50-year-old divaserenaded fans on her Instagram with 'one of my favorite album cuts from the Mimi album - YOUR GIRL!' as she wrote in the caption to the video snippet.