Jennifer Lopez fears giggling fits on American Idol will make her look silly

Jennifer Lopez doesn't want to look silly on American Idol.

The On The Floor singer is worried she will be a "giggling fool" during her stint as a judge on the singing competition, because fellow panellists Keith Urban and Harry Connick Jr. make her laugh so much during shooting.

Speaking during an American Idol season 13 live Q&A, Jennifer said: "I love being between these two guys, I love being on the panel with these guys, they do have a lot of banter going on.

"They make me laugh, I think the danger this season is not to come off like a giggling fool, because they make me laugh so much, we really are having a good time. They're awesome."

J.Lo claims Keith is the "prankster" of the group, while newcomer Harry - who joined the panel this year - admitted he is the "mischievous" judge and tries his best to make the curvaceous beauty laugh all the time.

He quipped: "There is so much going on, anything to make her lose it."

It was announced last September that J.Lo would be returning to the American Idol panel following her exit in 2012 to focus on her music and acting career.

The new line-up follows exits from Nicki Minaj, Mariah Carey and Randy Jackson who all quit the FOX series last year.