With her multi-octave voice and more than 80 million records sold worldwide, it's no surprise that pop diva Mariah Carey is viewed as the successor to Whitney Houston. She emerged as the premier R&B/pop songstress of the 1990s, and by the end of the decade had shifted gears a bit by collaborating with the likes of Ol' Dirty Bastard and incorporating elements of hip-hop into her sound. Though her 2001 big-screen debut, GLITTER, was a total flop and something of a blow to Carey's seemingly Teflon career, her 2005 comeback record, THE EMANCIPATION OF MIMI, solidified her status as a true pop-music diva.