Skylar Grey, who recently performed 'I Need a Doctor' with Dr. Dre and Eminem on the Grammy Awards, will be appearing with Diddy Dirty Money on tomorrow night's 'American Idol' broadcast.

"Getting to perform on television with Eminem and Dr. Dre still doesn't feel real to me, and now to perform with Diddy-Dirty Money in the course of a month is unreal," Grey enthuses. "I'm really excited about the opportunity to perform on 'Idol.' It's incredible to have all of this leading into my album coming this year."

The song Grey will perform with Diddy Dirty Money is 'Coming Home,' from Sean 'Puffy' 'P. Diddy' Combs' current album 'Last Train to Paris.' The song was recently used by MSG network to promote the trade of basketball star and Brooklyn native Carmelo Anthony to the New York Knicks.

Tomorrow the Top 13 'Idol' finalists will learn their fate when America's favorites are announced. Adam Lambert is performing tomorrow as well, an acoustic version of his song ‘Aftermath.' The show airs at 8PM ET on FOX.

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