The Rolling Stones are facing a $320,000 fine because their gig at London's O2 on Sunday was 35 minutes too long.

The veteran rockers - made up of Mick Jagger, Ronnie Wood, Keith Richards and Charlie Watts - were playing the first of their historic 50 and Counting shows and were meant to finish at 10:30pm. However, they defied local council rules and thrilled the 20,000-strong crowd by continuing to play encores until 11:05pm, meaning they will be given a huge fine.

"It means a big fine - but the guys just do their thing. There wasn't a janitor standing there, jangling his keys, saying. 'I want to go home,'" their agent Bernard Doherty told The Sun.

However, the fine is unlikely to upset the the "Brown Sugar" hitmakers as they are set to net over $24 million from the five gigs they are playing.

The group will play at The O2 again on Thursday, before heading to the US, playing at the Barclay Center, New York City, on Saturday December 8 and the Prudential Center, New Jersey on December 13 and 15.