Taylor Swift recently brought singer Steven Tyler onstage with her in Nashville, during a gig on her epic 1989 World Tour, to do a duet of the Aerosmith classic "I Don't Want to Miss a Thing." After the experience, Tyler said he was a certified Swift fan!

"She is an incredible entity — it's unreal what that woman is. She reminds me of the wonder around Madonna. Your average person thinks Madonna's singing 'Like a Virgin,' but if you look at what she endured in this man's-world music business of ripoffs, scoundrels and bastards, she's doing it like that. She's a phenomenon," Tyler told GQ magazine. "She's like a beautiful guitar that's got beautiful strings, and when they're strummed they sing these notes, but if you lean it up against the amp it starts feeding back. If you lean Taylor up against her audience — and she's singing and they're screaming — it's a complete circuit. It's like a feedback loop."

Tyler said he was actually incredibly shocked that Swift's fans knew "I Don't Want to Miss a Thing," as teenage girls are not typically in his audience. He couldn't believe her fans were "singing the lyrics at the top of their lungs," and called it a "real moment."

"The incredible @iamstevent tonight singing 'I Don't Want to Miss a Thing'. Magical things going down on this tour," Swift captioned an Instagram picture of the two performing the song.

Check out the video below to watch Tyler and Swift sing the Aerosmith ballad.