In case you haven't heard, we launched Mr. Skin's Whack-It Bracket yesterday- a special event in honor of the madness which is March where we pit 64 of our sexiest stars against each other in a tournament-style bracket.

This week we're kicking things off with 32 rounds of mam-to-mam combat, and every day we'll be breaking down a match from each of our four divisions in an attempt to predict the winner.

Today's division? Representing the A-Cup All Stars, it's Olivia Wilde Vs. Amy Smart!

Olivia Wilde

PROS: Played bisexual high-school student Alex Kelly on The O.C.

Gave us a three-star nude debut with an amazing look at her love muffins in Alpha Dog (2006)

CONS: Used fake CGI boobs for her topless scene in The Change-Up (2011)

Teased a nude scene in Cowboys Aliens (2011) that also covered the good parts with CGI

Amy Smart

PROS: Was the most mam-orable part of Road Trip (2000)

Also showed us her rear view in the horror flick Mirrors (2008)

CONS: Used a body double in Crank (2006) and Crank 2:High Voltage (2009)

Hasn't gotten nude yet in her role on Showtime's Shameless- and seriously, c'mon. Everybody gets naked on that show.

SKIN CENTRAL'S PREDICTION: Olivia Wilde for the win. You're turning into a regular CGI queen, Olivia, but your exotic beauty and star power (and those Alpha sweater puppies) can't be beat.

Do you like 'em Wilde or do you like 'em Smart? Luckily, you don't have to choose- we've got them both here at MrSkin.com!