Guy Fieri 55 shows off his tattooed body in a

Guy Fieri, 55, shows off his tattooed body in a SHIRTLESS selfie as he celebrates his 'last workout of the year' with a sauna and a cold bath: 'I hope everyone has a happy holiday!'

Guy Fieri heated up the holidays with a hot shirtless selfie.

The 55-year-old Food Network star — who said he won't leave his fortune to his sons unless they have two college degrees — took to his Instagram Stories on Friday to share with his fans a belated Christmas present in the form of himself give half naked.

With his signature bleach blonde hair slicked back from sweat, the “Diners, Drive-ins and Dives” host posed like a pro and showed off his shoulder tattoos while relaxing in the sauna.

“The last workout of the year was followed by a hot sauna and a cold bath,” he captioned the scorching snap. “I hope everyone has a happy holiday!!”

Guy also mentioned that he was in the gym preparing for his son Ryder's 18th birthday party on Sunday.

Guy Fieri took to his Instagram Stories on Friday to give his fans a belated Christmas present in the form of himself shirtless

Guy Fieri took to his Instagram Stories on Friday to give his fans a belated Christmas present in the form of himself shirtless

In a follow-up photo, Guy revealed the temperature in the sauna reached 176 degrees Fahrenheit.

“Turn on the heat!!” he exclaimed.

The heated social media action comes after Guy – who shares Ryder and son Hunter, 27, with his wife Lori – admitted he won't distribute his fortune to his children on a whim.

Speaking to Fox News, he said Ryder and Hunter would need to earn two degrees to maintain their inheritance.

'Shaq said it best. Shaq said, “If you want that cheese, you gotta get two degrees,” Guy exclaimed. “Well, both of my degrees mean, you know, post-graduate studies.”

According to the restaurateur, Ryder protested the idea.

According to Fieri, Ryder told him, “Dad, this is so unfair. 'I haven't even gone to college yet and you're already pushing for me to get an MBA?' He asks, “Can I just get through college?”

Guy added: “I told them the same thing my dad told me.” My dad says: “If I die, you can expect me to die broke and you to pay for the funeral.”

Guy also mentioned that he was in the gym preparing for his son Ryder's 18th birthday party on Sunday;  seen in March

Guy also mentioned that he was in the gym preparing for his son Ryder's 18th birthday party on Sunday; seen in March

Guy - who shares 18-year-old Ryder and 27-year-old son Hunter with his wife Lori - recently admitted he won't spend his fortune without his children working hard in school

Guy – who shares 18-year-old Ryder and 27-year-old son Hunter with his wife Lori – recently admitted he won't spend his fortune without his children working hard in school

“And I told my boys, 'None of what we built… what I built you're going to get unless you come and take it away from me.'”

It's been a breakout year for Guy as he signed a new three-year, $100 million deal with the Food Network in November.

Fieri joined the Food Network family in 2006 when he won The Next Food Network Star and his own series, Guy's Big Bite.

Since then, he has appeared in several series including Guy Off the Hook, Guy Fieri's Road Show, Guy's Family Road Trip, Guy & Hunter's European Vacation and Guy's Ranch Kitchen.