Ronson's girlfriend upset by speculation on Winehouse 'affair'

Mark Ronson has lashed out at the British tabloids for upsetting his long-term girlfriend over reports he is having an affair with Amy Winehouse.

The 32-year-old - who produced the troubled singer's last album 'Back To Black' - has been accused of spending the night with Winehouse at K West Hotel in London, after the pair were photographed leaving the swanky establishment on Friday.