Michael Jackson was envious of Rob Lowe's good looks

During an appearance on 'Jimmy Kimmel Live!', Rob was asked if he knew Michael and he replied: "I had worked with Janet [Jackson], so I knew the family a little bit. This was literally when he was the king of the world and you felt like ... I don't know. He had an aura. He literally had an aura that he gave off.

"I actually was approached by a plastic surgeon ... I forget where I was. And he said ... he introduced himself and he said he was Michael's surgeon and he told me that Michael had requested my chin.

"And it turns out that for a brief, shining moment in the 80s, it was the most requested chin."

Meanwhile, Rob previously claimed that "science is catching up" to his health-conscious lifestyle.

The actor - who has been on the Atkins Diet for more than 30 years - told GQ magazine: "People used to make fun of me. But now the science is catching up - that it's more than beauty sleep. It's brain sleep, it's body sleep, it's focus.

"The other thing is, as a guy in my fifties, I'm training in a very different way than I used to. The hardest thing for me has been to train less. I would train every day if I could - and, frankly, kind of punishing myself. If I don't feel like I've just killed myself in the gym, I feel like it's been wasted time.

"Turns out, that's not true - it's particularly not true when you're not in your twenties and thirties anymore."