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Host Jason Derulo gets the ceremony off to a rowdy start with some crowd surfing before breaking into a dance routine.
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Justin Bieber pulls out some sultry moves while delivering the first performance of the night.
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"I tend to not have a filter sometimes, and I go off on a lot of people, but the music stays the same," Chris Brown tells the audience while claiming the statue for RampB artist of the year.
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Accepting the award for triple threat, Selena Gomez thanks her supporters for sticking by her side during a "confusing, beautiful, transitional period for me."
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Taylor Swift congratulates boyfriend Calvin Harris with a hug after he wins dance artist of the year.
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Demi Lovato gives an emotional performance of "Stone Cold" alongside Brad Paisley.
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As he presents her with the best tour award, Justin Timberlake thanks Taylor Swift for inviting him to join her 1989 Tour stage while he was "at the time one very new nervous dad. #PoopyDiapers."
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"We're still in our high school band," U2's The Edge says about the group while accepting the innovator award beside Bono.
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Diplo thanks collaborator Justin Bieber for working with him and Skrillex on "Where Are Ü Now," which nabbed dance song of the year. "Thank you Justin for taking a chance on us," he says. "I wish more people would take chances."
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"For the first time I had the most amazing person to come home to when the crowds were all gone and the spotlight went out so I'd like to thank my boyfriend Adam for that," Taylor Swift says while accepting the best tour award. The singer also took home the statues for female artist of the year, most meme-able moment and album of the year.
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Zayn Malik chooses the steamy track "Like I Would" for his first-ever awards show performance as a solo artist.
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"I want to thank my family at home. I really miss my little brother and sister, they are growing up so fast," best male artist Justin Bieber shares after his win is announced. "I've experienced some tough times, I think all of us do, but it's about our growth and learning," he adds.
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Iggy Azalea adorns the stage with an airplane to perform her new single "Team" in a denim bra and baggy jeans.
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