Reel Big Fish is an American ska punk band from Huntington Beach, California, best known for the 1997 hit "Sell Out". The band gained mainstream recognition in the mid-to-late 1990s, during the third wave of ska with the release of the gold certified album Turn the Radio Off. Soon after, the band lost mainstream recognition but gained an underground following. The band was no longer signed to a major record label in 2006 and is currently independent. After many line-up changes throughout the years, front man Aaron Barrett remains the only founding member in the band.

Reel Big Fish released a demo in 1992 which is now called "In The Good Old Days". With the departure of Ben Guzman, then backup vocalist Aaron Barrett took his place as lead singer. The band then changed their genre to ska.