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

Let the Britney Spears drama begin...

The new X Factor judge reportedly walked off the set of the Fox reality singing competition after a contestant apparently butchered her song "Hold It Against Me," TMZ.com reports. Spears was then absent as four more hopefuls auditioned for the show.

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However, Spears was quick to shoot down rumors that she had walked off in a huff. "#Britneywalksoff??? LOL was just taking a little break people. I am having the BEST time!!!" she tweeted Thursday night.

About an hour before she sent that tweet, Spears wrote, "Texas has a lot of talent - seriously! Loving @TheXFactorUSA auditions so far..."

Do you think Spears walked off set, or is it all just trumped-up drama?