Step 1 : Introduction to the question "Which of the following Ben and Jerry's ice cream flavors is named after a music group?"
Phish is an American rock band that was founded at the University of Vermont in 1983. The band is known for musical improvisation, extended jams, blending of genres, and a dedicated fan base. Vermont-based ice cream conglomerate Ben & Jerry's launched "Phish Food" in recognition of their shared Vermont heritage. The band officially licensed their name for use with the product, and were directly involved with the creation of the flavor. Phish's portion of the proceeds from the flavor are donated to the band's non-profit charity The WaterWheel Foundation, which raises funds for the preservation of Vermont's Lake Champlain.