John Travolta donned a fat suit and fake Baltimore accent in "Hairspray."

Travolta donned a 30-pound fat suit and underwent five hours of makeup preparation a day to play the supportive, stay-at-home mother of Tracy.

It wasn't easy, Travolta said, mentioning he even got some advice from another fat suit-familiar actor.

“There's an added level of weight to carry around, but more than that it was very hot inside,” revealed Travolta. “Martin Lawrence had warned me that it was not going to be easy, and others had warned me it was not going to be easy. So I was sweating a lot. A lot of air [was] needed. High heels were difficult to dance in but I committed to [it].”