Taylor Swift Brings MKTO On Stage to Perform 'Classic' - Watch Here!

Taylor Swift brings out surprise guests 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 brought out the duo to perform their hit “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.”

PHOTOS: Check out the latest pics of Taylor Swift

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 whole performance below…