Unless you've been living under a rock, you know that the second season of "The X Factor" debuts tonight, with Miss Britney Spears as a judge!

The pop starlet and fellow judge Simon Cowell sat down with "Extra" correspondent (and Simon's ex-girlfriend...awkward) Terri Seymour to talk all things "X Factor" -- from Brit's panic attacks, to the rivalry with Christina Aguilera!

“I have a regular anxiety like anybody would, just nervous anxiety,” Spears replied when Seymour jokingly asked if working with Simon really gave her panic attacks.

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Watch the full interview above to see what Simon added about also needing to unplug, what Britney did to make him feel like "a proud father," and see Brit's take on the Xtina / "The Voice" rivalry (and Simon's eye-rolling when the other show is mentioned)!

Also, be sure to come back to toofab at 5pm Pacific/ 8pm Eastern tonight for our LIVE CHAT during the premiere episode of "The X Factor."

Related Posts from ExtraTV.com

Simon Cowell Blasts "The Voice" on Premiere Showdown: "Stupid Games" 

Simon Cowell on Britney Spears: "I Wasn't Sure It Was Going to Happen"

Britney Spears on "X-Factor" Judges: "We're the Shizzle" 

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