A foam party is a social event at which participants dance to music on a dance floor covered in several feet of suds or bubbles, dispensed from a foam machine.
Foam parties can be dated back to A Rhapsody in Black and Blue, a 1932 short film directed by Aubrey Scotto, wherein Louis Armstrong dances, sings, and plays his trumpet in a large area of soap suds. Songs performed in the foam are "I'll Be Glad When You're Dead, You Rascal You" and "Shine". Another film featuring foam parties is The Party, featuring Peter Sellers.
Modern foam parties were developed in the early 1990s by club promoters in Ibiza. Generally, machines were large, ceiling-mounted foam generators, created by Weird Dream Productions, that created a large volume of foam that fell from the ceiling onto clubbers. The large water usage and subsequent cleanup required made this impractical for many venues., resulting in a demand upon Weird Dream Productions to modify their foam to be of low water content. Weird Dreams achieved this in model Mk III which produced 200,000 litres per minute with just 50l of water. UK style leaders Big Fun and Roy Barlow Leisure purchased machines from Weird Dream Productions and later began manufacturing their own versions, creating a global market for the product, and these three companies remained global market leaders throughout the craze. All market leaders were UK-based until around 2004. In recent years, companies have utilized inflatable pits, especially for foam parties to avoid the mess that venues seek to avoid at all costs. 
As Ibiza foam parties became more popular, the craze spread, and the foam cannon was developed by Roy Barlow from The Entertainment Biz and Robin Wincup from Galaxy.
In the 1990s, foam parties were performed weekly at Amnesia in Ibiza.
- A Rhapsody in Black and Blue at IMDb
- "Plot Summary". A Rhapsody in Blue. IMDb. 1932.
- "Foam Party - How to organise a foam party and information on running foam parties". www.foam-party.co.uk.
- "Foam Party - Example of a foam party company that utilizes an inflatable pit in their foam party to avoid a mess after". www.roaringfoam.com.
- Flam, Lisa (June 6, 2012). "HEALTH: 'Foam parties' bubble over with hidden hazards". TODAY.
- Yael Levi (July 23, 2008). "2 Israeli brothers die after being electrocuted at hotel". Ynetnews.com. Israel. Retrieved 2012-10-28.
- Media related to Foam parties at Wikimedia Commons