"Everybody Have Fun Tonight" is a song by the English new wave band Wang Chung, released as a single from their fourth studio album Mosaic in 1986. Collaboratively written by Jack Hues, Nick Feldman, and Peter Wolf, it reached no. 2 on the US Billboard Hot 100 chart during the 1986 Christmas season, behind "Walk Like an Egyptian" by the Bangles. It also hit No. 1 on the Canada RPM Top 100 Singles chart the week of 17 January 1987. With some different lyrics, the original ballad version of the song was placed on the B-side.

Wang Chung is an English new wave band, formed in London in 1980 by Nick Feldman, Jack Hues and Darren Costin. The name Wang Chung is Chinese, meaning "yellow bell" in English, and is the first note in the Chinese classical music scale. The band found their greatest success in the US, with five top 40 hits there, all charting between 1983 and 1987, including "Dance Hall Days", "Everybody Have Fun Tonight" and "Let's Go!".