Controversial On-Air Personality, Piers Morgan, has mocked Kylie Jenner after she officially became the world’s youngest self-made billionaire ever in Forbes’ list.

The 21-year-old mother of one dethroned Facebook tycoon, Mark Zuckerberg, who was 23 when he achieved the milestone in 2008.

Reacting to Kylie’s feat, the outspoken Good Morning Britain presenter said Kylie’s success can be attributed to her elder sister, Kim Kardashian’s sex tape.

Morgan also argued that the youngest member of the Kardashian-Jenner clan was only privileged because of her famous family

“When you say self-made billionaire, I just thought she’d got it because her sister made a sex tape and that is why they’ve all became hugely rich,” he said.

“If Kim Kardashian hadn’t made that sex tape that then got leaked and [taken] ownership of it and made millions, and made a family franchise out of it, none of them would have ever been heard of.”

Morgan went on to hit out at Jenner’s looks, going back to his openly vocalised admiration for the star’s older sister Kendall Jenner, adding that if they weren’t famous they wouldn’t get into a “top-flight Croydon night club.”

He added: “I’m not being rude but the only hot Kardashian is Kendall, the others, none of them are that hot. If they weren’t Kardashians, famous for the sex tape, none of them would get into the average top-flight Croydon night club and the bar is set pretty low.”

Kylie’s Jenner’s success comes as a result of her Kylie Cosmetics empire, which was founded in 2015 and is now estimated to be worth a staggering $800 million.