Britney Spears Learns 'Gangnam Style' on 'Ellen'!

Britney Spears gets taught the “Gangnam Style” dance by Korean pop star Psy on The Ellen DeGeneres Show, airing on today’s episode!

The 30-year-old pop star also opened up about being nervous on becoming a judge on The X Factor, which premieres Wednesday (September 12) and Thursday (September 13) at 8/7c on Fox.

“I was really nervous. You have all these people behind you and you know they’re routing you on,” Britney expressed to Ellen. “Its really exciting, electric thing to do. But you know after we got out there and the cast is amazing. Demi and L.A. are great. And we had fun. We had a lot of fun.”

Also pictured: Demi Lovato and L.A. Reid attending the Fox Fall Eco-Casino Party held at The Bookbindery on Monday (September 10) in Culver City, Calif.