"Jeans On" is a song by British musician David Dundas from his 1977 self-titled debut album. Released as a single the previous year, it was first featured as a television advertising jingle for Brutus Jeans. The popularity of the commercial eventually led to the recording of "Jeans On" as a full-length song, with some lyrical changes.

The single eventually became Dundas's biggest hit, peaking at #3 on the UK Singles Chart and #17 on the U.S. Billboard Hot 100.

Dundas also recorded a French language version of the song, titled "Blue Jeans".

The opening piano riff of the song was looped and sampled for British electronic musician Fatboy Slim's 1998 track "Sho Nuff"; as a result, Dundas is credited as a co-writer on the track.

The song is covered by Keith Urban in the 2002 album Golden Road.

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