Baby Jump is a popular song by Mungo Jerry

Mungo Jerry

Mungo Jerry is an English rock group whose greatest success was in the early 1970s, though they have continued throughout the years with an ever-changing line-up, always fronted by Ray Dorset. They are remembered above all for their hit "In the Summertime". It remains their most successful and most...

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Written by the group's lead vocalist and guitarist Ray Dorset

Ray Dorset

Ray Dorset is an English guitarist, singer, songwriter, and founder of Mungo Jerry...

 and produced by Barry Murray, it was the band's second UK No. 1 single, reaching the top for two weeks in March 1971. The song originally entered at #32 and dropped out of the chart due to lack of sales data because of a national postal strike, but re-entered two weeks later at #14.

Like the group's debut single, "In the Summertime," it was a maxi-single playing at 33 rpm. The second track on the A-side was a Paul King

Paul King (musician)

Paul Malcolm King , was a member of Mungo Jerry between 1970 and 1972. He contributed occasional lead vocals, and played acoustic guitar , banjo, harmonica, kazoo and jug...

 composition, The Man Behind the Piano. The B-side, which had a playing time of 9 minutes 50 seconds, included live recordings from their Hollywood Festival appearance of Maggie (excerpt), Midnight Special

Midnight Special (song)

"Midnight Special" is a traditional folk song thought to have originated among prisoners in the American South. The title comes from the refrain which refers to the Midnight Special and its "ever-loving light" ....

, and Mighty Man.

A photograph of the group at their historic appearance on stage at the Hollywood Festival, Newcastle-under-Lyme, in May 1970, was used on the picture sleeve.

The cover picture (also used on the 'Electronically Tested' album) may actually be from a festival in Rotterdam.