Kenny Kosek, born in 1949 in New York, was an American bluegrass fiddler known for his versatility across various genres including country, klezmer, and folk. He began playing the violin in the 1960s and quickly became a prominent studio musician in New York. Kosek's early career included performances with The Star Spangled String Band and collaborations with the David Bromberg Band. In 1971, he played with the New Deal String Band at Carlton Haney’s festival, documented in the film Bluegrass Country Soul. Throughout the 1970s, Kosek was a member of Country Cooking, recording albums with notable musicians like Peter Wernick and Tony Trischka. He also worked as a studio musician for artists such as Steve Goodman, Chaka Khan, James Taylor, and Willie Nelson. In the 1980s, he joined the Jerry García Acoustic Band, contributing to their recordings and performances. Kosek's diverse career included composing music for films and television shows.