Born in 1975, which son of Julio Iglesias also became a singing superstar?

Born in 1949, which author graduated from Harvard Law in 1978 and published "The Burden of Proof" in 1990? Born in 1956, which Swedish tennis player won six French Opens and five straight Wimbledons? Born in 1961, which famous woman was the daughter of the eighth Earl Spencer? Born in 1963, which former member of the Groundlings comedy troupe is the oldest of the six "Friends" stars? Born in 1980, which Cardinals first baseman opened his career with 10 straight seasons of 30 homers and 100 RBIs? Born in 1980, which world champion figure skater was named after a Beatles song? Born in 1982, which British royal is the elder son of Prince Charles and Princess Diana? Born in 1986, which Welsh singer released the hit album "Voice of an Angel" when she was 12?