The 39-year-old Black Eyed Peas frontman teamed up with the late-night host on Monday's Tonight Show for a video filled with braces, headgear, neon and some serious teenage complaining. Fallon reprises his role as "Ew!" show host Sara (no h) as the two make it known what they find to be "ew!" This list includes impleggies (butt implants if you didn't know!), Face Time and ducklips.
"I'm freaking Pharrell, I think silicone butts are ew!" will.i.am, a.k.a. Mir.i.am., raps.
After a MUST-SEE fast-paced rap by Sara (Fallon), where she lists off ALL the things she despises, the duo ends their video by saying: "Haters gonna hate."
will.i.am joins a long list of celebrities who've gone preteen for the "Ew!" show. First Lady Michelle Obama, Taylor Swift, Zac Efron, Lindsay Lohan and Seth Rogen have all guest starred on Sara's show.
"Ew!" the song is available for digital download on iTunes. Proceeds will go to the SeriousFun Children's Network and the i.am.angel Foundation.
Check out the power of Fallon and his star-studded Tonight Show moments: