Think a song titled Ew! couldn’t be catchy? Wrong!

Jimmy Fallon and have taken the Tonight Show host’s notorious sketch Ew and turned it into a song… and it’s already stuck in our heads!

In the you-need-to-see-it-to-believe-it clip, watch as the pair dress up as their 13 year old alter-egos, Sara and

Best part is – by downloading the song on iTunes, you’ll help support the SeriousFun Children’s Network and Foundation.

Want more? Get more from Kyle & Jackie O!