John Popper (b. 1967) is a musician, songwriter, and noted harmonica player. He is best known for his role as frontman of rock band Blues Traveler, performing harmonica, 12-string acoustic guitar and vocals. He appeared in the 2007 direct-to-video Sesame Street release, Kids' Favorite Country Songs, playing harmonica and vocalizing on "Home on the Range" with LD Miller.
Popper is widely considered a harmonica virtuoso, and is listed by harmonica manufacturer Hohner as a "Featured Artist", an accolade reserved for only the best and most successful harmonica players.