After seven years together, Lewis Hamilton and Nicole Scherzinger called their on-again off-again relationship quits earlier this month. Lewis Hamilton took to Instagram to post a photo with his rumored ex girlfriend Naomi Campbell - is he trying to send a message to Nicole Scherzinger that he's over it for real this time?

Nicole Scherzinger has told the media that the break up was mutual and it looks like F1 racer Lewis Hamilton is doing his best to move on.

According to The Mirror, Lewis was seen out with a mystery blonde in New York, just a week after his break up from Nicole Scherzinger. And perhaps even more shocking, he posted a photo on Instagram featuring his posing with supermodel Naomi Campbell - who he was romantically linked with back in 2007.

Are they dating again?

 Selfie with my big sis @iamnaomicampbell

A photo posted by Lewis Hamilton (@lewishamilton) on Feb 16, 2015 at 10:32pm PST

"Nicole has been in pieces about the split," a source told New! magazine. "Lewis promised her he'd respect her and not go rushing into another relationship or even hang out with other girls.

"So she was devastated when she saw him partying in New York. She's been in floods of tears most of the time."

But Nicole should plug up those tear ducts - though Lewis was previously linked to Naomi Campbell in 2007 (shortly after he met Nicole), they have always insisted they were just friends. In fact, Naomi even hung out with Lewis and Nicole together in the past.

Lewis even captioned the Instagram photo above: "Selfie with my big sis."

Doesn't sound like something a guy would say about a woman he was dating!

The source added to the publication: "Lewis feels he should be able to have friendships with other women without feeling he constantly has to justify himself to her."

A rep for Lewis confirmed to New! that the F1 star is "definitely not romantically linked to anyone."