Mariah Carey MIMED American Idol Medley? Diva's Rep RESPONDS To Lip-Synching Accusations!

We guess that NO ONE can escape the wrath of lip-synching accusations on the internet! Beyoncé faced it after her rendition of the National Anthem at the presidential inauguration of Barack Obama, and now, Mariah Carey has come under fire for her performance medley of her biggest hits on American Idol's 12th season finale last night! And