| http://www.w3.org/ns/prov#value | - U.K. native Edge's roster now boasts some of the biggest names in pop and rock, including Justin Timberlake, Britney Spears, Ke$ha, Christina Aguilera, Alicia Keys and Pitbull, making parent Sony the No. 2 music company in terms of market share. (Founded in 1929, RCA is also the second-oldest label in the U.S., behind fellow Sony property Columbia.)PHOTOS: 9 Highest Paid Entertainment CEOsHelping
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