Taylor Swifthas chipped a tooth after punching herself in the mouth during one of her Red tour shows in Pittsburgh.

The star was performing her smash hit single I Knew You Were Trouble when the incident occurred, where T-Swift "uppercut punched" herself with a microphone.

Speaking of the mishap the following night, the 23-year old told Rolling Stone: "Tonight I was particularly hung up on not chipping another tooth like last show in Pittsburgh, definitely.

"It had a tip on [the tooth] and it doesn't anymore."

"I try to be really quick with the microphone, so I'm not standing there just waiting to sing with my mic right next to my face, so I really quickly pulled my mic up to sing and basically uppercut punched myself in the tooth."

Earlier this week, Swift was joined on stage by legend Carly Simon for a rendition of her hit track You're So Vain.