taylor-jt-amas-2013.jpgGetty Images for Dick Clark Productions/American Music Awards

Macklemore & Ryan Lewis may have led this year's American Music Awards nominees with six nods, but at the end of the day it was Taylor Swift and Justin Timberlake who emerged as the big winners with four and three awards, respectively.

Swift won Artist of the Year, Favorite Country Female Artist, Favorite Pop/Rock Female Artist, and Favorite Country Album for Red while Timberlake took home awards for Favorite Pop/Rock Male Artist, Favorite Soul/R&B Male Artist, and Favorite Soul/R&B Album for The 20/20 Experience.

Swift presented the award for Favorite Pop/Rock Male Artist to Timberlake before taking to the stage to accept the award for Best Country Album ... so calculated! Rihanna, One Direction, and Macklemore & Ryan Lewis all picked up two awards each.

Pitbull hosted the show at the Nokia Theatre L.A. Live, and Lady Gaga, Katy Perry, Rihanna, Justin Timberlake, Miley Cyrus, Imagine Dragons, Florida Georgia Line, One Direction and Ke$ha all performed during the three-and-a-half hour telecast. Wonder if Taylor and ex-boyfriend Harry Styles crossed paths at any point during the evening? Hey, we gotta ask!

Click thru for the complete winners list...