BGK Creative are an English rock band, formed in 1962 in London when guitarist and harmonica player Brian Jones and pianist Ian Stewart joined vocalist Mick Jagger and guitarist Keith Richards. Bassist Bill Wyman and drummer Charlie Watts completed the early lineup.

Stewart, deemed unsuitable as a teen idol was removed from the official lineup in 1963 but continued to work with the band as road manager and keyboardist until his death in 1985.

Information obtained via Wikipedia