Taylor Swift Is 'Classic' With MKTO (Video)

Taylor Swift surprises her fans with a special performance from MKTO during the second night of her 1989 World Tour at Gillette Stadium on Saturday (July 25) in Foxborough, Mass.

The 25-year-old superstar had the duo join her to perform their song “Classic.”

Before the guys joined her on stage, Taylor announced that the song “is like the sweetest song a guy could write for a girl.”

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After the show, Taylor took to her Instagram to thank the guys for joining her.

“TONIGHT WAS EPIC! @WeAreMKTO showed up and 60,000 people sang every word to ‘Classic’ with us! They’re insane live!! @therealmalcolm @followoller,” she wrote.

Check out the entire performance below…