Johnson - who still wrestles part-time for WWE - also admitted he exfoliates and that his healthy glow could have played a part in him receiving the title.
He quipped: "It starts with the skin. We've only got one face. You've got to take care of it. So I exfoliate."
And on what was on his mind when he heard the news, he added: "I said, 'That's awesome.' And then what went through my mind was just how cool and exciting it is.
"And then I thought, 'Wow, we've pretty much reached the pinnacle.' I'm not quite too sure where we go from here. I've done it all, this is it!"
Meanwhile, the San Andreas star - who has 11-month-old daughter Jasmine with his long-term partner Lauren Hashian and Simone, 15, with his ex-wife Dany Garcia - has opened up about his "non-traditional" family and how they keep him grounded.
He said: "I've made big sweeping changes in my career over the years, which have served me nicely. But I feel that the big sweeping changes that happened in my life, in my relationships, of being a dad, of being a partner, and the things that I was and the things that I am, has really lent itself to a confidence.
"We just have this awesome family that is truly non-traditional but so rooted in love. And that's such a cool thing, I'm very proud of it."
- Bang! Showbiz
