Slick Rick Live at will.i.am's Trans4m Charity Concert

The 2014 "Trans4m" Benefit concert raised more than $2.4 million for the Will.i.am's i.am.angel Foundation, according to event organizers. The group provides educational support for students in the underprivileged section of East Los Angeles.

It was an old-school party at will.i.am's annual pre-GRAMMY charity concert as veteran rap stars like Slick Rick and Doug E. Fresh rocked a capacity crowd along with the likes of Bell Biv DeVoe, Chaka Khan and Sergio Mendes.