Bert Sommer
 Bert William Sommer (February 7 1949 – July 23 1990) was an American folk singer songwriter and actor. He wrote We're All Playing In The Same Band at and about Woodstock and his recording peaked at #48 on the Billboard Hot 100 on 12 September 1970. He was briefly a member of baroque-pop group The Left Banke co-writing and singing lead on the Ivy Ivy/And Suddenly single in 1967.