Taylor Swift gave her Toronto fans a special surprise during her concert when she sang a hit song from one of their favorite Canadians — Justin Bieber!
At Toronto's Air Canada Centre over the weekend, Taylor decided to sing a medley of her favorite Canadian pop songs, The Vancouver Sun reports.
With her guitar in hand, Taylor sang "You Learn" by Alanis Morissette, Tal Bachman's "She's So High" and Justin's hit "Baby."
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The crowd sang along (or screamed along) to Justin's song and apparently Tweeted all about it to him after the show!
"Heard you sang BABY at your concert in TO," Justin Tweeted at Taylor. "thank u for the love... might have to come by and stop in on a show."
Watch a fan-made YouTube clip of Taylor singing "Baby," below!