Sidney Mills was born in the UK in 1959 and moved to Jamaica as a child. He was raised in the Saint Thomas Parish and became a musician from an early age he moved to Kingston the late sixties. Sidney attended Kings College Kingston where he matured as a musician under the tutelage of the likes of Sonny Bradshaw. In 1981 he moved to NYC sharing the stage with some of the big names in reggae such as Shabba Ranks, and lovers Rock icon Judy Mowatt Sidney has been the keyboard player for the legendary Grammy award winning band Steel Pulse since 1988. But he has turned out for artists such as Aswad and Smashing Pumpkins. He was also the founder of New York-based record company Living Room Records who released albums featuring Dennis Brown and Sylvia Tella.
Sidney and Steel Pulse's David Hinds collaborated to produce Franklin’s Tower for the album Fire On The Mountain; 'Reggae Celebrates The Grateful Dead'. Sidney also scored the soundtrack for the film Fly by Night. He has also collaborated on albums released by Frankie Paul, Ziggy Marley, Mikey Dread Shinehead, Shabba Ranks, The Neville Brothers, Gwen Guthrie, Toots Hibbert & Sly & Robbie.
Sidney also collaborated with spoken word artist and producer Malik Al Nasir on Malik & the OG's album "Rhythms of the Diaspora Vol 1" . Sidney played keyboard vibes on the track entitled "The Dash" featuring Washington DC based rapper Bobby Shaza Davis, of the famed GoGo band Troublefunk.