After four singles recorded for Pye Tony's record contract was not renewed, but he soon got a new chance. CBS (Columbia in the USA) became interested in pop / rock music, so they signed Tony with the Vibrations, renamed The Tony Jackson Group. The first single for the new company was called You're My Number One b/w Let Me Know. CBS 202039, release date was January 1966. The A-side was written by Peter Cowap who later made some singles in association with Graham Gouldman. On the B-side Tony and two of his band presented their first original. Unfortunately the single didn't chart.
above: acetat and a short article from NME.
left: NME ad.
right: poromo UK

CBS released the single in two more countries in 1966, Italy and Spain, in both countries CBS 2039, below the Italian single is shown
above: from Starclubmagazine plus another rare photo of The Tony Jackson Group as a five piece band.

In 1966 CBS France released the combination of his first two CBS singles, You're My Number One / Let Me Know as the A-side.