The Big Four record companies are EMI, Warner Music Group, Universal Music Group, and Sony BMG. Together they represent the majority (around 75%) of the global recorded music market. In the past, EMI and Warner enjoyed success in the 1950s-1970s by representing artists like the Beatles, Cliff Richard, and Frank Sinatra. Universal is now the largest due to its market share and global operations. Sony BMG was formed as a joint venture between Sony Music and Bertelsmann music.