She was a train wreck on American Idol.  And, earlier today, Mariah Carey was a bit of a train wreck on Good Morning America.  Well, at least her dress was!  The back of it busted open and Mariah was left trying to figure out a way to prevent another Janet Jackson moment.  This is pretty hilarious and Mariah, believe it or not, was quick on her feet and handled it pretty well.  WATCH!

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