Tim Hauser (1936-2014) was an American singer and songwriter, best known as a founding member of the vocal group The Manhattan Transfer. The group, which emerged in the 1970s, is celebrated for its unique blend of jazz, pop, and R&B, often incorporating complex vocal harmonies and innovative arrangements. Hauser's rich baritone voice contributed significantly to the group’s distinctive sound. Notable works of The Manhattan Transfer include hits like "Operator," "Birdland," and "The Boy from New York City." The group received multiple Grammy Awards, showcasing their impact on both the jazz and pop music landscapes. Their album "Extensions" (1979) is particularly revered for its artistic depth and technical proficiency. Hauser's influence extended beyond performance; he was instrumental in popularizing vocalese—a style of jazz singing that sets lyrics to instrumental jazz solos. His commitment to blending various musical genres helped pave the way for contemporary vocal groups and inspired countless artists. Through his work with The Manhattan Transfer, Hauser left an indelible mark on the music industry, celebrated for his artistry and innovation in vocal music.