One of Mungo Jerry's regular gigs was at The Northcote Arms in Southall. Ray Dorset recalls in 1000 UK #1 Hits
by Jon Kutner and Spencer Leigh, "A lot of Hells Angels and Teds used to go there, and all the girls used to wear tiny little jumpers with leather skirts, and that gave me the idea for 'Baby Jump.' It was an aggressive, simple riff - 'Baby jump into my dreams.' Like 'In The Summertime,' the single was too short and Barry Murray (the producer) joined two bits together."