Jessie J really upped the stakes when she shaved her head for the charity Comic Relief, but she wasn't done there... The 'Domino' singer dared the guys of Lawson to switch instruments and perform her song 'Price Tag.' But wait, it gets better.

The guys decided to not only perform the song, but they did so wearing a Jessie J-esque skin tight body suits and black wigs!

And if you think they were just going to do the performance for a small group, think again. Lawson took the stage in their hilarious new duds to perform in front of a soldout crowd in Cardiff, Wales! The animal print bodysuits really didn't leave much to the imagination as you could clearly see the guys' tighty whities! Though we have to say, if they really wanted to look like Jessie, they would have shaved their heads or at least donned bald caps!

Lawson are joining other celebs like Jessie J and One Direction in their support of Comic Relief. The 1D guys recorded the official single for this year's Red Nose Day with 'One Way or Another (Teenage Kicks)' with proceeds going to benefit the charity. So far, Comic Relief has raised about $100 million dollars this year in their effort to support those in extreme poverty all over the world.