Taylor Swift wore a flattering glittery dress as she performed at the Victoria's Secret Fashion Show on Wednesday.

In a sneak peek video released, the 23-year-old is seen singing her hit I Knew You Were Trouble as the Angels strutted the runway. Swift also interacted with the models and sang to them as they walked past her.

Before the show, Swift posed backstage with the VS models and took funny photos with them. In one shot, which she uploaded on Twitter, she smiled next to Erin Heatherton, Lily Aldridge and Cara Delevingne. She captioned the picture, "The best things always happen on the 13th!"

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Aldridge told Us Weekly that she had a great time with Swift at the show, especially during her performance.

"We had a little moment at the end of her song Trouble, where we walked in front of the stage together," she told the magazine. "[Taylor] is one of my best friends, so we had so much fun together."

The day after the show, Swift continued to express her excitement and uploaded a picture on Instagram of her other performance with the rock band Fall Out Boy.

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She captioned the shot: "Still reliving the #VSfashionshow and getting to sing 'My Songs Know What You Did in the Dark' with Fall Out Boy.. (!!!!)"

The Victoria's Secret fashion show will air Dec. 10 on CBS.