John Hammeken has 28 Phish concerts.

Phish, an American rock band founded at the University of Vermont in 1983, is known for its eclectic style, improvisational performances, and loyal fanbase. The original lineup consists of Trey Anastasio (guitar, vocals), Mike Gordon (bass, vocals), Jon Fishman (drums, vocals), and Page McConnell (keyboards, vocals). Phish’s music defies easy categorization, drawing from rock, jazz, funk, folk, and blues. Their live shows are a cornerstone of their identity, often featuring extended jams and a unique rapport with their audience. Over the years, Phish has developed a cult following, with fans known as "Phish Heads," who often follow the band from city to city during their tours. Although they took a couple of hiatuses in 2000-2002 and 2004-2009, they've continued to tour and release new music, solidifying their status as one of the enduring and beloved bands in the live music scene.