Phish is an American rock band formed in 1983, dissolved in 2004, and reunited in 2009. It is one of the most successful live acts in popular music history, forging a popularity in concert far greater than their album sales, radio airplay, or music video presence would otherwise indicate. Phish, at the peak of their popularity in the mid- to late 1990s, consistently ranked as one of the highest-grossing concert tours in the world. Known for its improvisational style, rarely playing a song the same way twice, the band also never played the same set list twice in three decades and more than 1,700 shows. Many Phish fans attend multiple nights on a particular tour, much like sports fans buying season tickets, since each concert will be different. Phish is also known for allowing fans to record the concerts and distribute the recordings. Guitarist Trey Anastasio considered it "free advertising" since it enabled the band's music to be distributed and traded all over the United States and, eventually, the rest of the world. The band has a Halloween tradition of "Musical Costumes", when Phish performs an entire album by a different band or artist. Occasionally, the band have debuted their own new material during these Halloween performances (2013, 2018, and 2021). 1980s 1983 Phish formed in the fall of 1983 at the University of Vermont with co-founders Trey Anastasio and Jeff Holdsworth on guitars, Jon Fishman on drums, and Mike Gordon on bass. Many speculate that the band played at least two shows under the name Blackwood Convention in 1983, but this stated untrue by Anastasio in 2019. At this point, the band only played other artists' material, including Creedence Clearwater Revival, Wilson Pickett, the Who, and the Grateful Dead. 1984 Phish took a brief hiatus during the first part of 1984 after Anastasio was suspended from UVM. The band continued with live performances when Anastasio returned to the university in the fall, at which point they became officially known as Phish. For many concerts, Phish was joined by Marc Daubert on percussion and, on occasion, the Dude of Life on vocals. For years, the band's performance from 1 December 1984, was their earliest live circulated recording, though a recording of a performance at UVM's Slade Hall, from 3 November 1984 eventually surfaced. The band debuted many original songs that fall, including "Makisupa Policeman", "Slave to the Traffic Light", "Camel