Pharrell Williams recently collaborated with Takashi Murakami on a 6-foot sculpture called The Simple Things (2008-2009), featuring a black & rainbow DOB (Murakami's copyrighted character) jewel-encrusted objects the producer/rock star/designer can't live without (Doritos, Heinz ketchup, Pepsi, condom, sneaker, baby oil, cupcake). Also according to Michael Wilson's article "Frontin'" in Modern Painters (Dec 2009/Jan 2010), Pharrell admires and collects: Jeff Koons, Takashi Murakami, Keith Haring, Andy Warhol, and KAWS, because their work "isn't serious or snobby or stuffy." The Simple Things sold for $2.8 million.
Interview from here: