Demi Lovato and Britney Spears Tweet X Factor Audition Excitement

The first promo for The X Factor season 2 asks viewers if they're ready for a pair of very famous new judges.

But what about those judges themselves? Demi Lovato and Britney Spears sure sounded ready today when they touched down in Austin, Texas for their very first round of auditions.

"So excited to be going to Austin this week for @TheXFactorUSA auditions!" Spears, who was accompanied to Austin with Jason Trawick, Tweeted. "Will I see any of y'all there on Thurs or Fri?"

Added Lovato via the same social network:

"It's my first day... woo hoo!! Who's coming??!!! #XFACTORUSA."

Approximately 200 hopefuls will face Demi, Britney, Simon Cowell and L.A. Reid during four three-hour show tapings over the next couple days. And from there, it's off to another city... and then another... and then another.

Which of the new panelists has you most excited?

UPDATE: A source tells TMZ that Spears walked off the set a few contestants in after a singer butchered her song, "Hold It Against Me." It's unclear if she was upset or just needed a break, but a few subsequent crooners auditioned in front of one empty chair.

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