Pop stars turned their fame into billion-dollar businesses through tours, beauty brands and entertainment ventures.

Taylor Swift now has "The Life of a Showgirl," but at a young age, she knew her "Love Story" with songwriting would lead her to the music industry -- whether she was a star or not. "Good Morning ...

Taylor Swift has amassed an estimated net worth of $1.6 billion, thanks to record-breaking concert ticket and album sales, as ...