Britney Spears suffered panic attacks on 1st day of the 'X Factor'

London, Sept 7 (ANI): Britney Spears has revealed that she suffered from panic attacks on her first day as an X Factor judge.

The pop princess joined singer-songwriter Demi Lovato, record producer LA Reid and X Factor mogul Simon Cowell on the new-look judging panel on the US series for a reported 9.4million pounds in May.

But the singer admits that she was initially overwhelmed with the role.

"I was extremely nervous," the Daily Express quoted her as telling US Elle magazine.

"I was having panic attack after panic attack." she added. (ANI)