will.i.am

Will.i.am is best known for his work in The Black Eyed Peas, one of the most popular groups of the '00s - their hits include "Boom Boom Pow" and "Where Is The Love?." He's the producer and lead rapper in the group.

You can probably cover the entire music industry in three degrees of will.i.am. Many of his songs are collaborations of some kind, and he's cast a wide net. Artists he's worked with as a producer and/or artist include: Britney Spears ("Scream & Shout") Justin Bieber ("#thatPower") Miley Cyrus ("Feelin' Myself") Usher ("OMG") Kesha ("Crazy Kids")

He's released a few lighthearted "booty" songs over the years with lyrics that are kind of hilarious. A sample: "My Humps" by Black-Eyed Peas: What you gonna do with all that junk? All that junk inside your trunk? "Beep" with The Pussycat Dolls You got a real big heart but I'm lookin' at your [beep!] You got real big brains but I'm lookin' at your [beep!] "Big and Chunky" I like them big, I like them plumpy I like them round, with something, something (This one is from the perspective of a hippo. It's from the movie Madagascar 2.)