MCA Records (formerly known as Music Corporation of America) was a record label that was active from the 1940s to the 1990s. It was founded in 1944 by Jules Stein, a jazz band leader and eye surgeon, as a way to promote the music of his band, the Swing Band. Over time, the label grew and expanded, signing a variety of different artists across different genres, including rock, pop, country, and R&B.