Katy Perry has said she is 'excited' about performing at The American Music Awards on Sunday (November 21).

The singer broke down during her performance of 'Fireworks' last week at Radio1 Teen Awards.

Speaking about her forthcoming performance in a number of tweets on Twitter twitter.com/KATYPERRY Perry said: "Just finished AMA rehearsal... I am so excited about this remix performance. It's going to be a mixture of adorable & gorgeous. #AMAS (sic)."

Perry is also nominated in three category's at the awards Artist Of The Year, Favourite Female Artist and Favourite Album Of The Year for 'Teenage Dream'.

(by Holly Frith)