Looks like "Smash" may officially be dunzo -- because star Kat McPhee just drastically changed her look!

The "American Idol" alum returned to the show that made her famous last night, appearing on "Idol's" elimination episode on Thursday to perform "If I Lose Myself" with One Republic.

But long gone were her long locks, as the actress/singer was rocking a much shorter 'do. What do you think of the ombre, shoulder-length look?

And her hair wasn't the only thing Kat was showing off -- check out that midriff!

Vote for the better 'do in the gallery above.

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