A 'fan request' segment of Kelly Clarkson's current North American tour is throwing up some interesting surprises.

 Her cover of *N Sync's 'Bye Bye Bye' proved a hit last week, and now her version of Taylor Swift's 'Blank Space' has been approved by Swift herself.

Clarkson covered the song in Toronto on Saturday night, which you can see below - prompting the following tweet by Swifty herself: