John Joseph Theodore Rzeznik (/ˈrɛznɪk/; born December 5, 1965), also known as Johnny Rzeznik, is an American guitarist, vocalist, songwriter, and producer. He is best known as the guitarist, vocalist, frontman, and primary songwriter of the rock band the Goo Goo Dolls, of which he is a founding member and with whom he has recorded ten studio albums.