Madonna

The queen of pop's Hard Candy album tour became the top-grossing international tour of 2008, bringing in $280 million on 58 concerts in 17 countries. Keeping the 50-year old star's name in the papers: a reported love affair with allegedly juiced baseball slugger Alex Rodriquez, the end of her eight-year marriage to director Guy Ritchie, and trouble with her latest attempt to adopt a second African baby.