Now that Jimmy Fallon is the host of “Tonight,” stars line up to repay him a $100 bet and you’ll never guess who shows up.
The pop princess is saying goodbye to her 20s.
A look back on some of Hollywood's most memorable moments.
LISTEN: This week's top pop songs, according to the latest Billboard chart.
The "Shake It Off" singer fought with her record label to ditch her country girl image and become a pop star.