Not much known about the Megatons
, possibly a house band of musicians at CHESS? Anyway “Shimmy Shimmy Walk” was a large hit in Manchester Soul Clubs .
Curiosly the theme basline of this recording was extensively used by Blues and R&B and Soul artists in the sixties.
One example is Separation
by King Solomon
which ads lyrics to the instrumental from the Megatons and speeds it up.
The Megatons – Shimmy Shimmy Walk Part 1, YouTube
Checker USA – The Megatons