The 28-year-old music superstar confirmed as much in an Instagram video Tuesday after announcing the news on "Good Morning America."
"I'm opening up the American Music Awards with a performance of 'I Did Something Bad,'" she captioned the post. "Meredith is not excited, but I am. #AMAs."
The clip shows Swift lounging with her cat Meredith.
"Good morning America, it's Taylor. I just wanted to say I'm going to be opening up the American Music Awards with a performance," the star says in the video.
The American Music Awards confirmed the news on its official Twitter account.
"@taylorswift13 will OPEN the #AMAs with her first awards show performance in almost 3 YEARS..." the post reads. "...and she's performing 'I Did Something Bad.' ONE WEEK at 8/7c on ABC. #TaylorSwiftAMAs."
The 2018 American Music Awards will take place Oct. 9 in Los Angeles.
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Swift is nominated for four awards, including Artist of the Year and Favorite Pop/Rock Album for Reputation.
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