First she�s dropped by underwear firm Agent Provocateur for a younger model and now a new report claims that Pete Doherty cheated on Kate Moss with a girl he met in a nightclub.

The Babyshambles singer was seen leaving London's Crystal nightclub with a South African brunette named only as Lindy.

Eyewitnesses say that the pair kissed and cuddled as they left together in a black cab.

A source told the Sunday Mirror: "Pete and Kate had a serious argument during the week and he just decided to go on a bender.

"Kate was calling around to see if anyone knew where he was but everyone rallied around him to keep her in the dark.

"Hearing about him spending the night with another girl will eat her up. They have a tempestuous relationship at the best of times."

Meanwhile, Pete has reportedly said that he is fed up being known as �Kate Moss�s Boyfriend�  and wants to be known for his music instead.