Did Britney Spears Walk Off the Set of “The X Factor?”

We can always depend on Brit Brit to cause a ruckus on the first day on the job…

The Web watched as Britney Spears descended on Austin, Texas to deliver commentary on her first official day as an X Factor pundit.

Everything seemed to be going well — that is until the 10th contestant took the stage. Spears was promptly escorted backstage and she didn’t come back for the last four acts.

The move prompted reports that the pop tart had “walked off the set.” The rumors took flight after producers failed to address her absence wasn’t addressed.

Have no fear, talent show aficionados. Just a few hours after the stir, Brit hit her Twitter with a message for fans:

“#Britneywalksoff??? LOL was just taking a little break people. I am having the BEST time!!!”

Ah — that’s reassuring, since some media watchers still wonder if the “Womanizer” star can handle the pressure of the reality TV spotlight.

Lyndsey Parker, Yahoo! Music Managing Editor:

“It’s a short term gain for X Factor. There will be a huge amount of PR and when the show premieres there will be huge ratings. But I think it could be a disaster. I think Britney could make Nicole Scherzinger look like a genius.”

Andy Dehnart, editor of Reality Blurred, believes many viewers will likely tune in just to “see her crash and burn.”

“It’s not clear she is really a TV personality and somebody who can give the show what it needs, which is really insightful, concise, witty critiques of these singers. I really don’t think it’s going to work, but I am hopeful that Britney will surprise us.”

Hit Flix music blogger Melinda Newman also questioned whether Spears can sizzle on live television:

“You are saying to someone, ‘You may succeed but your dream of succeeding through us ends here.’ That is emotional pressure and that is hard to do. The public has not seen Britney in an environment where we would know if she is able to withstand that level of pressure and have to think very quickly on her feet.”

According to E! News Gossip Guy Marc Malkin, the singer “remained sweet and calm, only giving two no’s during the auditions.”

Her harshest critique to date:

“I feel like you need a new teacher to teach you how to sing.”

Ouch…