Cheryl Cole has hit out over claims she had a secret romance with MC Harvey, joking that the rapper must have been "smoking something" to think they had.

Cheryl Cole has hit out over claims she had a secret romance with rapper MC Harvey.

The Girls Aloud singer took to twitter to deny suggestions made by the former So Solid Crew star that she dated him in late 2010 following her divorce from England and Chelsea soccer star Ashley Cole, joking Harvey must have been "smoking something" to believe it had happened.

However, Harvey - who was previously married to 'Britain's Got Talent' judge Alesha Dixon before cheating on her with singer Javine Hylton - hit back at Cheryl's rant, claiming he has email proof of their relationship and insisting he would "rather go broke" and work in a supermarket than talk about her personal life.

Cheryl's Girls Aloud bandmate Nicola Roberts then waded into the argument, saying someone must have been impersonating 28-year-old Cheryl via email.

She tweeted: "Emails..?? I think someone's been having you on mate.

"#shedoesntdoemailsshedoesphonesex (sic)"

The row started after Harvey claimed he got close to Cheryl in late 2010.

He told Now magazine: "She's a good girl. There was a relationship. I wouldn't have minded Cheryl being my wife.