"I Don't Believe You Want to Get Up and Dance (Oops!)", (re-titled "Oops Up Side Your Head" on the single as well as being known by other titles such as "Oops Upside Your Head"), is a 1979 funk anthem recorded by the R&B group The Gap Band. Released off their fourth studio album, The Gap Band II, the song and its parent album both achieved commercial success.

The single was released in several countries in different formats. In the United States, it was a 12" with the B-side being "Party Lights". In the Netherlands, the 12" B-side was "The Boys Are Back in Town". In France, the single was a 7" with no B-side.

In the UK the track first surfaced in mid-late 1979 as the B-side of the 12" release of "The Boys Are Back In Town" / "Steppin' (Out)" (Mercury Records MERX2). Then in 1980, due to its popularity, was flipped and re-titled with just "The Boys Are Back In Town" as the B-Side (Mercury Records 7" MER22 / 12" MERX22). It was later released once again as the B-side to some copies of the remix version of "Party Lights" (Mercury Records 12" MERX37). In 1987, a 12" remix was released in the UK with a Dub version B-side (UK Club records JABX54).

The single became an international hit for the group upon its late 1979 release, though it failed to reach the Billboard Hot 100 (peaking at number-one on its Bubbling Under Hot 100 chart), the song hit the top ten on the US R&B and disco charts and became a big-seller overseas where it peaked at number six in the UK in 1980 and number six in the Netherlands.

Also Little Miss Muffet is mentioned.

The song is said to be one of the first songs to use hip-hop-styled monologues in a song. The song's success broke ground for the group, who would go on to become a successful R&B outfit throughout the 1980s. Today, it remains a popular song in the Gap Band's stable to this day.

In the UK, this song is typically "danced" to by sitting on the floor in rows and performing a rhythmic "rowing" action. The origin of this unusual dance, unique to this track, is credited to DJ Nigel Tolley, and is very widely seen. It was especially popular during the 1980s.

The song was sampled several times, especially during in 1990s G-funk era:

In April 2015, it was announced that the writers of "Oops Up Side Your Head" had had their names added to the writing credits of Mark Ronson's hit single "Uptown Funk".

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