Beautiful British bombshell Kate Beckinsale is probably best known for her roles as the vampire Selene in Underworld and Underworld Evolution. Unfortunately she didn't come back for the series' prequel, Underworld: Rise of the Lycans though. She recently starred with Matt Dillon in Nothing But The Truth, a highly acclaimed film that might have netted her an Oscar nomination, but unfortunately the film's distributors went bankrupt so nobody heard of it. Perhaps she should have done Underworld 3 after all. The versatile Rosario Dawson has proven she can handle any role also, from ancient history (Alexander), musicals (Rent), comic adaptations (Sin City) and our favorite, comedy (Clerks II). She also recently starred in a science fiction web series, Gemini Division. Next up: she'll star in an adaptation of Elmore Leonard's Killshot, with Mickey Rourke, Diane Lane, and Johnny Knoxville.

Who's it gonna be? Kate or Rosario? Vote!

The schedule:
First Round Voting: March 19-22
Second Round Voting: March 23-25
Sweet 16 Voting: March 26-28
Elite Eight Voting: March 29-31
Final Four Voting: April 1-3
Championship Voting: April 4-6
The champion will be announced on April 7th!

Check out the full bracket of all 64 Female Celebs here, you can even print it out and keep track of winners & losers!