Natasha Bedingfield, whose hit Unwritten earned her a Grammy, has whittled her nationwide Star Launch competition down to the final 3 "fun, fearless, female rock stars."

Teenager girl group Fortune 457, Bedingfield look-a-like Alexa Wilkinson, and "veteran" singer Mieka Pauley will perform with Bedingfield at Terminal 5 in NYC on Dec. 5.

The search began this September for a "rockin' chick musician," as Bedingfield said in her latest blog.

Over 500 musicians submitted songs on YouTube.

The Star Launch winner will be announced at the Terminal show, and will earn $10,000 in cash and a 3-track demo with a top-notch producer.