Katy Perry has canceled her upcoming concert in North Carolina due to a "family obligation".

The Firework singer was scheduled to stop at the Spectrum Center in Charlotte as part of her Witness world tour on 27 September (17) but she has now axed the date, revealing that it was accidentally booked on a day she could not perform on due to family commitments.

"To all my fans in the beautiful Carolinas, the Charlotte show was accidentally scheduled on a date that I have had a long-standing family obligation I must attend. My Management and I are truly sorry," she said in a statement.

Katy did not specify what the family obligation was or mention a replacement date for the show.

Witness: The Tour kicks off in Columbus, Ohio on 7 September (17) and the North American leg runs through to January 2018. She has also scheduled legs in Europe and Australia which will take her through to August 2018.