The J. Geils Band was an American rock band formed in 1968, in Worcester, Massachusetts, under the leadership of guitarist John "J." Geils. The original band members included vocalist Peter Wolf, harmonica and saxophone player Richard "Magic Dick" Salwitz, drummer Stephen Bladd, vocalist/keyboardist Seth Justman, and bassist Danny Klein. Wolf and Justman served as principal songwriters. The band played R&B-influenced blues rock during the 1970s and soon achieved commercial success before moving towards a more mainstream radio-friendly sound in the early 1980s, which brought the band to its commercial peak.