Rafael Greifer,^[1] better known by his stage name Raf Riley, is a record producer and artist from North London.^[2] He was formerly a member of ExR alongside Etta Bond,^[4] and is signed to OddChild Music^[3] and has released on Diplo's Mad Decent label.^[5] ExR released two EPs: Emergency Room and Meds. He released his own EP titled Now That's What I Call Gangster Beats!! in January 2013. Riley is also known for his comedy production: alongside Reuben "Dangerman" Dangoor, Riley is one half of the Grand Spectacular. Their 2010 single "Being A Dickhead's Cool" became a viral video, receiving over thirteen million YouTube views.^[6] Riley and Dangerman are also part of the comedy rap trio Sabotage Party alongside Ray Knotts, in which he raps as well as produces.^[7] Dangerman also designs and directs all OddChild Music artwork and ExR videos.

Raf Riley has worked with many artists including Professor Green,^[8][9] Labrinth, Diplo, Naughty Boy, Dr. Luke^[10] and Mike Skinner.^[11] Riley has had cuts with Elliphant, Skepta and has remixed for Sigma, Conor Maynard and Plan B.