"Open Up" is a song and hit single by the British group Mungo Jerry, first released in 1972.

[1] Written by the group's lead vocalist Ray Dorset and produced by Barry Murray,[2] it was the band's fifth single.

The song made 21 in the UK Singles Chart in April 1972 staying in the charts for eight weeks.

[3] Like the group's debut single, "In the Summertime," and following singles, it was a maxi-single playing at 33 rpm.

Other tracks on the extended play single were "Going Back Home", "I Don't Wanna Go Back to School" and "No Girl Reaction."