The Saturdays beauty denied romancing the British royal earlier this year after they were pictured dancing together in London club Bunga Bunga in April, but she has now revealed they did go out.
In an interview with Closer magazine, she said: ''Yes, I have met Harry, and we did go out for a drink.
''But a lot of the times I'm linked to men, I haven't even met them!''
The 25-year-old blonde - who was in a relationship with male model David Gandy, 32, for 10 months before they split in February - previously played coy about her royal romance, calling the prince ''out of her league''.
She previously said: ''No, I'm not going out with him - I'm serious. Everyone wants to believe it because he's royalty. Everyone would like it to be true but it's not. He's very out of my league, come on.''
The pair first met in July 2010 at the Asprey World Class Cup at Surrey's Hurtwood Polo Club.
There were then linked together in April, but it was reported Harry, 28, broke things off with the '30 Days' singer because she was too open about their relationship.
This week Harry found out he was going to be an uncle after his brother Prince William and his wife Duchess Catherine announced they are expecting their first child together.