Rafael Greifer, better known by his stage name Raf Riley, is a record producer and artist from North London. He was formerly a member of ExR alongside Etta Bond, and is signed to Odd Child Recordings and has released on Diplo's Mad Decent label. As part of ExR with Etta Bond, Riley released two EPs: MEDS and #CoolUrbanNewTalent as part of ExR. He released his own EP titled Now That's What I Call Gangster Beats!! in January 2013.