Steven Tyler joins Taylor Swift onstage

Pop star Taylor Swift took her 1989 World Tour to Nashville, and she surprised her fans with Aerosmith's Steven Tyler joining her on stage for a song.
Swift has been joined by a number of her celebrity friends and fans in recent months.
The Aerosmith frontman joined the "Wildest Dreams" singer for a memorable performance of his band's hit single "I Don't Want to Miss a Thing", with Swift later tweeting a video of the pair's rendition of the track.
"Singing 'I Don't Want to Miss a Thing' with @IamStevenT was an honour. So inspired by how sweet he was to all of us."

Tyler also shared his joy at being involved in the performance by replying to an old tweet of Swift's from 2012 mentioning his 1998 track.
"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," the singer had written.

"Well ma darlin'," Tyler replied this morning. "You sure were overstood tonight! A++ ... Epic Show ... Until Nextime..."
While some of Swift's special guest stars on her tour have included the likes of Fifth Harmony, Lisa Kudrow and Nick Jonas, Tyler's recent performances have been a lot more low-key.

Earlier this month, the US band's singer joined a Russian busker for an impromptu performance in front of a few passers-by.