It's a girl group showdown in PopCrush's Battle of the Brits! In this versus poll, the Saturdays are taking on Little Mix to see who will go on to face another competitor for the title of best act from the U.K.

We'll start with those lovely ladies known as the Saturdays, who have been cranking out tunes together since 2007. British gals Frankie, Rochelle, Mollie and Vanessa teamed up with the Sats' lone Irish member, Una, after the five women earned spots in the girl group following a massive audition process. Since then, they've earned spots atop the U.K. charts with singles like 'Just Can't Get Enough,' 'Forever Is Over,' 'Missing You,' and more recently, their No. 1 U.K. hit 'What About Us.' Through pregnancy, marriage, and career highs and lows, the classy girls of the Sats have always stuck together and are currently enjoying success Stateside with their reality TV show 'Chasing the Saturdays.'

The girls of Little Mix, on the other hand, formed on 'X Factor' in 2011 after a harrowing audition process. After almost getting axed not once, but twice -- the girls all originally auditioned as soloists and were later formed into separate groups before finally fusing to become the quartet we know and love today -- Little Mix (then known as Rhythmix) came into being. With dynamic personalities, unique eyes for fashion, amazing voices and awesome dance moves, Perrie, Jade, Jesy and Leigh-Anne are one of the most fun girl groups on the charts today. Their sassy 'DNA' singles 'Wings' and 'How Ya Doin'' are always running on repeat in our heads!

So, who will you pick? Are you more of a Saturdays fan, or do you absolutely love Little Mix? You can vote for either girl group below until July 17 at 2PM EST, when the poll will close. The winner of this round will go on to face another act in the Groups + Bands category.

Happy voting, readers!