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Mark-Paul Gosselaar stopped by “On Air with Ryan Seacrest” on Tuesday to chat about his new TV show “Franklin & Bash” and reveal the secret to his good looks.

The girls in the studio were hysterical upon the arrival of Mark-Paul Gosselaar. You may remember Mark-Paul as heartthrob Zack Morris from “Saved by the Bell.”

Twenty years have gone by and Mark-Paul has gone from a Bayside High student to N.Y.P.D. detective to a wise guy lawyer, but he still has his Bayside High good looks. How does he do it, does he stay out of the sun, sleep in?

“No , I’m in the sun all the time. I live at the beach and I don’t get enough sleep. I don’t do drugs, I don’t drink a lot of alcohol. I don’t know, maybe that’s it. I don’t smoke. I eat well, I like to exercise, I only exercise just by going out and having fun whether it’s surfing or riding my bike or something, but I’m not at the gym, I’m not a gym rat,” revealed Mark-Paul about his regimen.

Mark-Paul is currently starring in the new legal dramedy “Franklin & Bash.” Mark-Paul is joined by co-star Breckin Meyer who is best known for his rolls in “Clueless” and “Road Trip.”

“We are two street lawyers, ambulance chasers and we’re pretty hot shot. A big upscale law firm, run by Malcolm McDowell, decides to hire us and sort of shake up their stodgy culture, ” is how Mark-Paul describes the new show.

Mark-Paul Gosselaar Bares His Backside [AUDIO]

The guys have a hot tub in their den, “Two guys who are successful and make a lot of money, that are single and live together that’s inevitable. You have to have a hot tub in some part of your ‘Man Cave.’ These guys haven’t grown up. They’re smart, but they’re having fun with their money, they’re having fun with their life and they just like to live life,” Mark-Paul says.

Mark-Paul has a particular shot that is quickly becoming his signature shot, baring his butt. He has done it on “N.Y.P.D. Blue,” “Weeds,” and “Franklin & Bash” is no exception. Mark-Paul got to do his signature shot on the premiere episode.

“It was in the script, it was always going to be that Peter Bash, my character was going to come out of the hot tub naked. It was sort of a character description of who this guy is. He just doesn’t care. That’s how he rolls,” say Mark-Paul.

Mark-Paul says he is now referring to “His Butt” like it is a third person.

You can listen to the full interview below and to see more of Mark-Paul watch “Franklin & Bash” on Wednesday nights at 9/8c on TNT.