X factor winner Alexandra Burke is reportedly dating singer Amy Winehouse's backing singer Zalon Thompson and has been spotted out in London with him.

The 21-year-old beauty was seen with Thompson, who has been signed by Amy to her new label Lioness Records, going out for a romantic dinner and a trip to the cinema, reported Sun online.

Burke reportedly hooked up with the hunky musician after her single 'Bad Boys' reached number one in the charts last week.

"Alexandra is very fond of Zalon. They've struck up a close relationship over recent months and really enjoy each other's company," said a source.

Burke was earlier warned by X-Factor judge Cheryl Cole to be careful about who she dated while she established herself as a music star.

"Cheryl warned me. She said, 'You're not allowed to date dancers, Alex, and you're not allowed to date boys full stop!', " said Burke.