‘X Factor’ Style Showdown: Britney Spears vs. Demi Lovato at First Round of Auditions! (PHOTOS)

Demi Bikinis in Rio
Demi Lovato flaunts her beach bod.
Let the judging begin!

Singing superstars Britney Spears, 30, and Demi Lovato, 19, stepped out in Austin, Texas on Thursday to kick start the audition process for FOX’s hit singing competition, The X Factor. Looking equally stylish in very different ensembles, the “Slave 4 U” singer showed a bit of see-through cleavage in a short, skin-tight coral mini, while the “Give Your Heart a Break” songstress went for a more retro ensemble. However, Demi was able to add a bit of a rocker edge to her green dress and top knot with a black leather jacket.

So, who looked best for their big X Factor debut?

Sound off by voting in the poll!

Though we probobaly won’t get to actually see the ladies do their thing with judges Simon Cowell and L.A. Reid until X Factor hits the small screen this fall, E!’s Marc Malkin was on the scene and shared some fun tidbits.

According to Marc, Britney has taken Paula Abdul’s former seat at the judge’s table, while Demi is sitting where Nicole Scherzinger sat during the first season. Marc also described Demi as “fiesty,” while Britney was “sweet,” and even told to one of the 14-year-old contestants he could be the next Justin Bieber.

That’s high praise!

Even though Simon jokingly said, “What was he thinking” by choosing these judges, it appears as though they’re doing just fine!

However, Brit poked a little fun at the situation by tweeting: