Mariah Carey has joined the photo-sharing site Instagram, and she's already putting it to good use, unveiling both the artwork and the release date for her new single, "Triumphant (Get 'Em)."
Looks like Mariah Carey's comeback is happening now. She's just announced a free concert this Thursday, March 1 at New York City's Gotham Hall. According to a note on her official website, you can score your tickets by going to the website PlotYourEscape...