A rep for Taylor Swift has slammed reports that she is dating old flame John Mayer.

Rumours surrounding the pair circulated recently after they were seen together on the red carpet at the Country Music Awards in Las Vegas.

It was said that the duo, who got together previously in 2009, then reconciled and spent time together at an after-party.

However, a spokesperson for Swift rubbished the story, saying:

"There is no truth to this...whatsoever."

John Mayer meanwhile is a single man again after splitting from recent girlfriend Katy Perry. Watch Taylor Swift perform live below: