British celebrity Charlotte Church, 20, says, "I've got the biggest, fattest control pants in the world - if these don't work, nothing will.

Charlotte says she's been so busy working on her new show that she only has time to eat junk food. And she's put on quite a few pounds. She says, "I look like a heifer on TV because it puts a stone on you."

Instead of dieting or going to the gym she's invested in a pair of industrial strength 'gripper knickers'.