Swift accused Braun last week of refusing permission for her to sing songs from her back catalogue at the awards show. The public spat culminated last week with Braun saying that his family had received numerous death threats after the pop singer urged her 122 million Instagram fans to let Braun “know how you feel about this.”
But on Sunday, the Fearless singer made no mention of the dispute, although she opened her performance wearing a white shirt printed with the titles of her old albums.
“This year for me has been a lot. It’s been a lot of good, it’s been a lot of really complicated,” she said, without elaborating. She beat Drake, Ariana Grande, Halsey and Post Malone as artist of the year.
Newcomer Billie Eilish, 17, took home two statuettes for best new artist and best alternative rock artist after a breakout year that saw her top the US charts with her single Bad Girl.
“You made it all happen,” said Eilish, thanking her fans.
Eilish showed her support for environmental causes by wearing a T-shirt with the slogan “No Music on a Dead Planet” as she gave her first awards show performance with All the Good Girls Go to Hell.
Selena Gomez kicked off the ceremony in her first live TV performance in two years after undergoing a kidney transplant in 2017 and battling anxiety and depression.
Body positive R&B singer Lizzo performed her new single Jerome, and Cuban-born Camila Cabello and boyfriend Shawn Mendes sang their hit pop single Senorita, which won the award for collaboration of the year.
British rocker Ozzy Osbourne, 70, who has been sidelined by serious health problems for a year, was mostly seated as he took to the stage with rappers Post Malone, Travis Scott and rocker WATT for their single Take What You Want.
Punk rockers Green Day got the audience to its feet as they marked the 25th anniversary of their 1994 breakout album Dookie.
Other performers included the Jonas Brothers, Kesha, Halsey, Christina Aguilera and Shania Twain.