"King for a Day" is the fifth and final single from British funk and acid jazz band Jamiroquai's fourth studio album, Synkronized (1999).

The song was written by Jay Kay.

Upon its release on 29 November 1999, the song reached number 20 on the UK Singles Chart.

The video features Jay Kay walking around an old mansion in a regal costume, where each room has a member of the band.

This 1990s British single-related article is a stub.