John Joseph Theodore Rzeznik (; born December 5, 1965) is an American musician, singer, songwriter, and producer. He is best known as the founder, guitarist and frontman of the rock band Goo Goo Dolls, with whom he has recorded several chart-topping hits, including "Iris", "Slide", and "Name".
Born and raised in Buffalo, New York, Rzeznik grew up in a working-class Polish-American family, heavily influenced by music from a young age.