 Eric Clapton has recalled that occasionally he stood in for Mick Jagger at the club when the novice Rolling Stones singer had a sore throat.The regular musicians at the Saturday night blues sessions during 1962-65 included Jack Bruce, Ginger Baker, Eric Clapton, Charlie Watts, Graham Bond, Long John Baldry, Rod Stewart, Dick Taylor, Dick Heckstall-Smith and Paul Jones.Manfred Mann (originally the Mann-Hugg Blues Brothers) also played there.