Um...what now? We honestly never saw that one coming.
A source tells The Sun that Harry and Nicole hooked up when she was on a break from boyfriend Lewis Hamilton. The insider squealed: "They had a dalliance at the end of the X Factor in 2013 and met up again early last year. Harry was obviously very taken by Nicole who is stunning and he had always looked up to her."
While Nicole was a guest judge on the X Factor, nothing reportedly happened between the two, "but they hooked up over three years later when Harry had matured and was a member of the world's biggest band," the source explained.
Another insider seemed to believe they never did anything more than "snog," explaining, "Yes they did snog and got on well, but they never dated."
We're not so sure we're buying this Harry rumor...what do you think?