Russell Simmons

Day job: Co-founder of Def Jam Recordings

Collects: Contemporary

Collection includes: Kehinde Wiley, Francesco Clemente, Outtara Watts, Andy Warhol, Faith Ringgold, Gary Simmons

Fun fact: At a party at Simmons' home last year, a Victoria's Secret model allegedly brushed up against one of his Gary Simmons (no relation) chalk pieces and, believing she had smudged it (and maybe she did, although G. Simmons' work often has deliberate smudges), the guest proceeded to erase the image.