"2004Z"^^ . "Kevin Earl Federline"@en . . "Kevin Earl Federline (born March 21, 1978) is an American dancer, rapper, fashion model, and actor. His career began as a backup dancer; he later became known for a high-profile two-year marriage to American recording artist Britney Spears and the child custody battle that followed."@en . . "1978-03-21Z"^^ . . . . . . "Kevin Federline"@en . "1978Z"^^ . . .