Sonny J, short for Sonnington James III, is an English turntablist and singer-songwriter from Liverpool, currently living in Kent.

His debut single, "Can't Stop Moving", was brought out by Stateside Records in 2007. Whilst the single only reached #80 in the UK singles chart, the track has been used frequently as background music on the X Factor and Britain's Got Talent. His second and third singles, "Enfant Terrible" and "Handsfree (If You Hold My Hand)" featuring Donna Hightower, were released on 9 June 2008, followed by his debut album Disastro the week after, on 16 June.

Sonny J was propelled into the mainstream music scene when a fan published a viral video, featuring The Jackson 5, on several well-known websites, before a demo version of "Can't Stop Moving" was played on BBC Radio 1. In September 2008, the song was re-issued with a remix by Mirwais Ahmadzaï, which gave Sonny J his first top 40 hit when it peaked at #40 in the UK Singles Chart. He is currently a member of the band Groundhog.