Move over, Katrina Darrell.

Another season eight hopeful on American Idol has a bikini-baring past.

Casey Carlson was universally approved by the judges after her audition last night - and that was without Simon Cowell even seeing her in a bathing suit!

Turns out Carlson is part of "Campus Girls USA," a group of young beauties that have posed for a calendar in their swim wear. All proceeds from its sales will go toward the fight against breast cancer.

It's a great cause, and - as you can tell from the photos below - a great reason to keep Carlson in our lives for as long as possible...

Click on the Casey Carlson photos above for larger, sexier images of this American Idol hopeful.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.