Bert William Sommer (February 7, 1949 – July 23, 1990) was an American folk singer, songwriter and actor. He appeared in the musical Hair and at the Woodstock Festival, and released several albums as a singer-songwriter.

Sommer grew up in Queens and Hartsdale, New York, and was a self-taught musician (piano and guitar), who began writing songs in his teens.[2] He attended Woodlands High School as well as Quintano's School for Young Professionals in Manhattan. He became friendly with other...