Beyoncé Became Sasha Fierce
Beyoncé certainly had an eventful 2008. Not only did the star marry her longtime boyfriend Jay-Z in April, but she introduced the world to her alter ego by releasing the album I Am . . . Sasha Fierce. The album made way for a glove-toting Beyoncé era as the songstress busted out "Single Ladies (Put a Ring on It)", "If I Were a Boy," and "Halo". The music video to "Single Ladies" spawned a dance craze that encouraged a breadth of imitation and even a certain disagreement between Kanye West and Taylor Swift (one that is still very much alive today) when the video failed to win at the MTV Video Music Awards the following year.