"Blue Jean" is a song written and recorded by the English singer-songwriter David Bowie for his sixteenth studio album Tonight (1984). One of only two tracks on the album to be written entirely by Bowie, it was released as a single ahead of the album and charted in the United States, peaking at No. 8, becoming his 5th and last top 10 hit with no features. The song is loosely inspired by Eddie Cochran.

Tonight is the 16th studio album by the English singer-songwriter David Bowie, released on 24 September 1984 through EMI America Records. The follow-up to his most commercially successful album Let's Dance, it was written and recorded in mid-1984 at Le Studio in Morin-Heights, Canada, following the conclusion of the Serious Moonlight Tour. Bowie, Derek Bramble and Hugh Padgham co-produced the album. Many of the same personnel from Let's Dance and the accompanying tour returned for Tonight, with a few additions. Much of Bowie's creative process was the same as he used on Let's Dance, similarly playing no instruments and offering little creative input to the musicians.