Universal Music Group (UMG) is a global music corporation that is a subsidiary of the French media conglomerate Vivendi. The company was founded in 1934 as Decca Records and has since grown to become the largest music company in the world, with a market share of over 30%. UMG owns and operates a wide range of record labels, including Capitol Records, Def Jam Recordings, and Island Records, and has a roster of over 4,000 artists. In addition to music production and distribution, UMG also operates several other businesses, including music publishing, merchandising, and film and television production.