At the time, the duo didn’t shy away from the cameras as they attended red-carpet events together, put on loved-up appearances on holiday and made regular appearances on each other’s social media pages.

Nicole was also supportive of Lewis’ fast-paced career and was regularly spotted in the crowds during the Formula One season.

However, their relationship wasn’t smooth, as reports say they split up three times before ending things for good.

According to The Sun, their final break-up was down to his reluctance to get married, which Lewis hinted was due to his demanding schedule.

Speaking on the breakdown of another driver’s marriage, he said: “It’s similar to most sportsmen and women, it may be slightly different in that we are travelling as much as we are, and you are just away for crazy amounts of time.

“So that’s probably an additional weight that makes it really, really tough to hold down a good relationship, and if things aren’t quite perfect.”

In 2015, Nicole also alluded that the couple split because she “lost herself” in the relationship.

She told People Magazine: “Sometimes people stay in relationships because they get complacent because it’s comfortable for them because they don’t want to be alone.”

As for their relationship today, the X Factor judge revealed they are no longer in contact.

During a 2016 appearance on The Jonathan Ross Show, she revealed: “We don’t talk, I think it’s quite natural when people separate and go their own ways.”