The Battle of the Brits is on! In our first round of voting, we aren't taking it easy on pop music fans. We've pit Jessie J against Rita Ora to reign supreme in the Pop category and we have a feeling this will be a battle for the ages!

Jessie J is roaring back to the music scene with her new single 'Wild,' which features Big Sean and Dizzee Rascal. 'Wild' is a definite party jam with a pulsing bass and an urban flair, but Jessie is a pop diva through and through. Her accomplishments in her young career to date are a-plenty; Jessie's singles 'Domino' and 'Price Tag' have both been certified platinum and her debut album 'Who You Are,' peaked on Top 10 charts all over the world.

But if Rita Ora and her RitaBots have anything to do with it, Jessie J and her Heartbeats will not move on to the next round without a fight! Rita Ora not only has a devoted fan base, but also the support of Jay-Z behind her. The pop songstress' tracks 'How We Do (Party)' and 'R.I.P' have both hit No. 1 on the U.K. charts. If that's not enough to envy the always fashionable Rita, she even dates hottie DJ, Calvin Harris!

Make sure to vote for Jessie J or Rita Ora once per hour before the first round of polls close on July 17 at 2PM EST!