Rihanna started with "We Found Love," during which she writhed around on the crowd until the Calvin Harris-produced track came in. The singer's blonde 'do gave the performance a twinge of Tina Turner.
Chris Martin and his guitar then joined RiRi for "Princess Of China," a much more stripped down performance. The full band then performed "Paradise."
It was a big night for electronic music. Chris Brown also performed a song that was produced by a house music artist ("Beautiful People," by Benny Benassi), Skrillex won three awards in the pre-show and deadmau5 and David Guetta were expected to perform later in the show.
See a clip of the performance below:
See images of all the major performances:
HuffPost Entertainment is your one-stop shop for celebrity news, hilarious late-night bits, industry and awards coverage and more — sent right to your inbox six days a week. Learn more