Going to a Phish concert isn’t like seeing any other band perform live. The Vermont foursome has embraced experimental improvisation as the core of its music since forming in the late 1980s, and has been the most prominent act in the jam band scene since the early ’90s. Initially influenced by jam pioneers the Grateful Dead, Phish has evolved into its own distinctive musical experience, in many ways eclipsing the popularity and impact of its predecessor.

Without ever scoring mainstream radio or TV airplay or releasing a hit single, Phish has become one of the most popular touring bands in the U.S., with epic shows that feature ever-changing set lists and long, improvisatory jams that make each performance unique. Although the band has gone on hiatus for various periods of time over the years, the core members have remained the same since 1986, and their strong musical bond is what allows Phish to explore so many musical avenues with confidence and versatility. Phish’s most dedicated fans have seen hundreds of shows, but newcomers can easily appreciate the intricacy and energy of a Phish concert, and the fans are always welcoming, happy to share the wonders of their favorite musical innovators.

MGM Grand, 7:30 p.m. Oct. 31-Nov. 3, starting at $72 plus tax and fee. 800.745.3000 Ticketmaster