In the late 60's Clancy Collins AKA Sir Collins Downbeat started releasing Rocksteady tunes on his Collins Downbeat label. From the start he had a relationship with Bunny Lee who provided mastertapes that were either released as they were or overdubbed in the UK with singers, DJs or instrumental solos.
You can hear this on three rhythms on this mix. Music Field, Grab A Girl and You Don't Care (I'm Shocking...). Delroy Wilson's Live As One (on a Joe Gibbs original) and the Marlene Webber tune both date from around 1971 shorlty before the next chapter of Sir Collins musical career with the establishment of his Sir Collins Music Wheel label.

Roy Shirley - Music Field (Bunny Lee production - UK Doctor Bird)
Lester Strirling - Soul Voyage (Bunny Lee production - Blank)
Lester Stirling And Sir Collins - Sir Collins Special (Sir Collins production - UK Collins Downbeat)
Owen Gray - Rock It Down (Sir Collins production - UK Collins Downbeat)
Sir Collins, Don Simmons And Lester Stirling - Three Wise Men (Sir Collins production - UK Collins Downbeat)
***
Enos And Sheila - La La Bam Ba (Joe Gibbs production? - UK Blue Cat)
Gaytones - Heart Of The Knight (Joe Gibbs production? - UK High Note)
Delroy Wilson - Live As One (Sir Collins production - UK blank LP)
***
Glen Adams - Grab A Girl (Bunny Lee production - Blank)
Sir Collins And Bob Stackie - Sock It softly (Sir Collins production - UK Collins Downbeat)
Owen gray - I'm So Lonely (Sir Collins production - UK Collins Downbeat)
***
Glen Adams - I'm Shocking I'm Electric (Bunny Lee production - Blank)
Don Tony Lee And Bobby aitken - Cool Cool Rocksteady (Bunny Lee production? - UK Collins Downbeat)
Rico And J.Satchmo - Shock Steady (Sir Collins production - UK Collins Downbeat)
Lester Stirling - Lester Stirling '67 (Bunny Lee production? - UK Collins Downbeat)
***
Uniques - I'm A Fool For You (Bunny Lee production - UK Collins Downbeat)
***
Marlene Webber - Hard Life (Sir Collins production - UK Smash)
Collins All Stars - Version Life (Sir Collins production - UK Smash)