Actress Julianne Hough was left deflated following the Costume Institute Gala in New York City on Monday (06May13) when her chauffeured limousine suffered a flat tyre.

The Rock of Ages star donned a designer gown for New York's most fashionable event, also known as the Met Ball, which attracts a host of Hollywood stars and popular singers to the Big Apple.

Hough was being driven to an afterparty when the car she was travelling in hit a pothole in the road, leaving the tyre flat.

Her driver had to jump out and quickly change wheels before she could get on her way.

Taking a snap of the tyre and uploading it to Twitter.com, she explained, "Hit a pot hole (sic) on the way to the met ball after party... Haha changing a tire in Nyc!!!"