Which 'Idol' Contestant Has Undergone the Biggest Makeover This Season?

As the guys get ready to impress Randy, Paula and Simon with their singing skills Tuesday night, there's no doubt they’ll also be dressed to impress.

And the same goes for the Top 6 ladies, all of whom have their sights set on the “American Idol” crown.

With that being said, which contestant has undergone the biggest makeover this season?

Share your thoughts with "Extra" here!