Intimate video of Formula One champion Lewis Hamilton and Nicole Scherzinger leaked

Lewis Hamilton and Nicole Scherzinger attend a drinks reception at the British Fashion Awards in 2014. Photo / Getty

An intimate video of Formula One champion Lewis Hamilton and former pop star girlfriend Nicole Scherzinger has been leaked online, according to reports.

The pair previously dated between 2007 and 2015 after meeting at an MTV awards ceremony 12 years ago.

According to The Sun the former Pussycat Dolls singer was upset that the two-and-a-half minute clip, shot on a phone, had been leaked.

The footage reportedly shows the then couple lying on a bed together while being intimate.

It has reportedly been viewed at least 500,000 times since it was first shared online.

"Nicole will be heartbroken that such footage has found its way online," a friend told The Sun.

"It was never intended for the public domain."

Scores of celebrities have had private pictures published on the internet, including Hunger Games star Jennifer Lawrence whose nude photos were leaked in 2014.

Hundreds of stars are concerned their iCloud accounts and other online sites could be compromised.

Last year a man was charged with hacking into more than 250 iCloud accounts of Hollywood stars.

George Garofano, 26, pleaded guilty to unauthorised access to a protected computer to obtain information in connection to the 2014 'celebgate'.