Whos Dr Luke?
Lol @ Lil Jon makn the list
He is a producer/songwriter who has written and/or produced for Ciara, Paris Hilton, Jibbs, Lady Sovereign, Kelis, Leona Lewis, Missy Elliott, Pink, Lil' Mama, the Backstreet Boys, Daughtry, The Veronicas, Carlos Santana, Three 6 Mafia, Vanessa Hudgens, and the Sugababes etc.
Remember this list is not a Hiphop list, it's producers across all genres, and clearly Hiphop/R-n-B producers dominated in the last decade.
I was surprised about Lil Jon too.