Phish is an American rock band noted for their extended jam sessions and musical improvisation. Formed at the University of Vermont in 1983, the band's four members performed together for over 20 years until their breakup in August 2004. Their music blends elements of a wide variety of genres , including rock, jazz, bluegrass, and funk. Each of their concerts was original in terms of the songs performed, the order in which they appeared, and the way in which they were performed.

Although the group received little radio play or MTV exposure, Phish developed a large and dedicated following by word of mouth, via Phish.net (originally a mailing list, then a Usenet newsgroup, now a website), and the exchange of live recordings. Rolling Stone calls Phish the "living, breathing, noodling definition" of a jam band, and states that the band grew "to become a cultural phenomenon, followed across the country...by thousands of new-generation hippies and hacky-sack enthusiasts"; moreover, the band helped to "... spaw[n] a new wave of bands oriented around group improvisation and superextended grooves."

Phish was a popular American rock band most noted for its extended improvisations, elongated song compositions and the varied genres represented in their song repertoire. The band was formed in 1983 in Burlington, Vermont where they all attended college. The band’s four members Trey Anastasio, Mike Gordon, Jon Fishman, and Page McConnell performed together for 21 years until their breakup in August of 2004. Although the group received little radio play or MTV exposure, Phish developed a large