Britney Spears' '...Baby One More Time' seems to unstoppable in PopCrush's Throwback Thursday polls, with her most recent win over 'N Sync's 'Tearin' Up My Heart' garnering her more than 80% of the fan votes. Congrats to Team Britney and the songstress herself!

Now, Spears will go on to compete in another week of voting, and '...Baby One More Time' has to battle five fierce females this time around. Brit is going head-to-head with the Spice Girls and their breakout hit 'Wannabe,' so which force of '90s girl power will prevail?

More than a decade after its release, we still cannot get enough of '...Baby One More Time.' Hit us again and again with this classic, Brit! We're totally OK with it. Just like the singer herself, '...Baby One More Time' is equal parts sweet and sexy. It's truly pop at its finest, with irresistibly catchy lyrics that beg you to sing along and a seductive, bass-heavy composition that boasts one of the most recognizable intros in the history of the genre.

However, the term "power in numbers" could ring true if Spice Girls overtake Brit with their chart-topper 'Wannabe.' Like Brit's '...Baby One More Time,' this amazing track off of 'Spice' has a slightly sexual nature, but this is overshadowed by the bodacious, bubbly, uptempo beat. We remember trying to keep up with the girls, particularly Mel B and Geri (aka Scary and Ginger), on the furiously fast pre-chorus, "I'll tell you what I want, what I really really want / So tell me what you want, what you really really want."

Which tune never gets old for you? Vote Brit's '...Baby One More Time' or Spice Girls' 'Wannabe' below, and remember, you can vote once per hour until the poll closes next Wedneday, March 27, at 11:59PM ET.

Watch the Britney Spears ‘…Baby One More Time’ Video
Watch the Spice Girls ‘Wannabe’ Video

Rules of Throwback Thursdays: The artist and song with the most votes wins, and the winner goes on to face a different Throwback Thursday challenger the following week. If an artist wins four weeks in a row, they will be retired into the Throwback Thursdays Hall of Fame in order to give others a chance to compete.