The 2013 American Music Awards took over Nokia Theatre in LA on Sunday night, and there were plenty of must-see moments! Host Pitbull kicked off the night by giving audience members a lesson in booty-shaking dance moves with the help of a group of female dancers. Justin Timberlake took home the first award of the night for favorite pop/rock male artist, and he celebrated by running through the audience to dole out high-fives. He later grabbed two more honors. Meanwhile, Katy Perry channeled her inner geisha for a Japan-inspired performance of "Unconditionally" while the boys from One Direction got serious for their soulful new song "Story of My Life." Miley Cyrus confused some by singing "Wrecking Ball" accompanied by a digital cat, and Rihanna picked up a big honor, the icon award, from her mom. So much more went down, including Lady Gaga and R. Kelly's political performance and Taylor Swift's big artist of the year win — click through to see all the action!