Simon Cowell 'Katy Parry Is Feisty'

Simon Cowell has given the thumbs up to Katy Perry, who is guesting as a judge on the next season of American Idol - describing the 'Hot N Cold' singer as "feisty".

Following the shock departure of Paula Adbul, the show has enlisted a number of one-off special guest judges, including Katy. And speaking of her contribution to the contest, Cowell said: "She's a feisty little thing."

"She's quirky. Definitely got her own opinion." Simon continued to tell Extra. "Solo artists are not used to people disagreeing with them. They are feisty and I like that."

"I don't think she knew quite how right I was until she sat next to me."