Taylor Swift won four prizes at the American Music Awards 2013.
They included artist of the year, favourite pop/rock female artist and favourite female country artist.
Justin Timberlake picked up three awards including favourite soul and R&B male, while One Direction collected two prizes including best pop/rock group.
Katy Perry, Jenifer Lopez, Miley Cyrus and Lady Gaga were among the performers at the show in Los Angeles.
Swift, 23, beat Justin Timberlake, Rihanna, Bruno Mars and Macklemore & Ryan Lewis to win artist of the year for the third time, the most times an artist has won the category.
After picking up her fourth and final award for best country album for Red, the singer said: "This validates that if you voted for this, that we are heartbroken in the same way and we fall in love the same way and we're happy in the same way, and if you listen to this, we're on the same page ... we're pretty much in it together."
Swift was also on hand to give out an award.
Rapper 2 Chainz, Kelly Osbourne and Fall Out Boy were among the other presenters at the 41st edition of the event.
Hip-hop duo Macklemore & Ryan Lewis, who led the nominations with six nods, came away with two wins for favourite rap/hip-hop artist and favourite rap/hip-hop album for The Heist.
Rihanna appeared on stage with her mother to pick up the icon award.
The Bajan singer also performed on the night.
Ariana Grande was given the best new artist award and Avicii beat off Calvin Harris, Daft Punk and Zedd to win the favourite electronic dance music artist award.
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