According to reports, the "Bodyrockers" star has already moved on since splitting from stunning Keira - and has been spotted cosying up to diva Mariah Carey and Donatella Versace's niece, Francesca.

The singer reportedly met Mariah at a star-studded bash in London.

A source told Britain's The Sun newspaper: "The pair chatted for a while then Mariah slipped him her room number, a special password to get in and her mobile number. But when Kaz tried to dial the number later in the evening, her phone was off".

After being snubbed by the songstress James started flirting with 23-year-old Francesca.

A source is quoted in Britain's Daily Mirror newspaper as saying: "They got one really well and continued partying ay Kabaret's Prophecy afterwards Kaz was really laying on the charm and making a big show of pouring her glasses of Dom Perignon champagne".