It may be hard to believe but there are still celebrities out there Taylor Swift hasn't introduced to fans on her 1989 world tour. On Friday night for her Nashville Bridgestone Arena gig, Aerosmith front man Steven Tyler joined Swift for a rendition of the band's 1988 classic hit and Armageddon track, "I Don't Want to Miss a Thing." The two swapped verses on the fiery rendition which wrapped up with the duo dancing side by side.

"I don't know what else to say but when you've sold over 150 million albums with your band, when you have become an absolute rock n' roll icon," Swift told the crowd before bringing 67-year-old Tyler to the stage, Rolling Stone reports. "The person that's about to come out on stage has been inducted into the Songwriters Hall of Fame and the Rock & Roll Hall of Fame with his band Aerosmith. Steven Tyler's here, Nashville."

The surprise appearance stirred up old memories from a tweet the "Blank Space" singer posted three years prior. In June 2012, she wrote to Swifties: ""I feel like I'd be more understood if people knew 'I Don't Want to Miss a Thing' by Aerosmith is how most of my emotions sound in my head." Trailing the Nashville performance, the former American Idol judge alluded to the tweet by saying "Well ma darlin'... you sure were overstood tonight! A++... Epic show," Blabbermouth notes.

The rock and roll icon was in the company of two other special guests for Swift's first of two gigs at the Bridgestone Arena. Kelsea Ballerini joined the "Wildest Dreams" singer for a rendition of her own "Love Me Like You Mean It" while Alison Krauss later stormed the stage with a fiddle in hand to execute "When You Say Nothing At All" with the 25-year-old pop sensation.

The 1989 world tour has boasted appearances by a long list of celebrities including Beck, St. Vincent, Alanis Morissette, Uzo Aduba, Lisa Kudrow, Avril Lavigne, Justin Timberlake and Selena Gomez with many more to come as she continues to hit the road.

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