Chess Records
In 1947 Leonard Chess bought a label called Aristocrat Records. In 1950 Leonard brought in his brother Phil and they renamed tha label to Chess Records. The first release was "My Foolish Heart" b/w "Bless You" by Gene Ammon, which became a hit. In 1952 they started Checker Records for radio play because the stations only played a limited number  of songs from one label and in December 1955 the started Argo Records for jazz music. The first LP was produced in 1958.