The United States Women's Gymnastics team — known as the Fierce Five — will be presenters at the Sept. 6 show. Gabby Douglas, McKayla Maroney, Alexandra Raisman, Kyla Ross and Jordyn Wieber won the women's team gold medal at the Olympics this month and have been on a whirlwind tour ever since that included the couches of Jay Leno and David Letterman. Douglas, Maroney and Raisman also won individual medals.
Swift said she will perform a new song from her upcoming fourth studio album at the awards show.
“It's such a different song than anything I've ever put out before,” she says in a video promo for the awards.
Comedian Kevin Hart will host the VMAs live from the Staples Center in Los Angeles. Performers include Green Day, Alicia Keys, Pink and One Direction.