Charlotte Church and Gavin Henson have been spotted having another bust-up.

The pair fell out during a night at London's Comedy Store on Thursday after a stand-up comedian made a joke about Charlotte.

An onlooker told The Mirror, "The comedian was making jokes about religion. He said the only Church he'd ever been in was Charlotte. She seemed to take it well, but Gavin looked appalled. He sat there with a face like a smacked a*** and basically ignored Charlotte for the rest of the evening, even though she was trying to comfort him."

Once the show had ended, Gavin apparently stormed out of the venue, leaving Charlotte trailing behind.

Tabloid reports last weekend claimed that the pair were on the rocks.