Guy Fieri, Cowboy.Photo: Jesse Grant/Getty; Guy Fieri/Twitter

Guy Fieri dog Cowboy

Guy Fieriand his family are mourning the loss of their dog, Cowboy, who died shortly before the Food Network star’s 55th birthday on Jan. 22.

“Today is the saddest day in the Fieri family,“Fieri posted, alongside a photo of the pup, on Twitter Saturday. “We lost our COWBOY today. He was one-of-a-kind and brought so much love and energy to our family.”

The restaurateur’s heartbreaking post garnered support from famous friends such asStar WarslegendMark Hamill, who responded with a broken-hearted emoji, andSeinfeldandDancing with the StarsalumJohn O’Hurley, who posted “The O’Hurleys share your sadness. It is the loss of innocence. May God celebrate him Home.”

Cowboy.Guy Fieri/Twitter

Guy Fieri dog Cowboy

A day after sharing the sad news about Cowboy’s death, Fieri celebrated his 55th birthday on Sunday.

“The greatest birthday of my life. Wow. Thanks to all my friends family and my big brother the Red Rocker@sammyhagar. Wow. UNBELIEVABLE,” Fieri captioned the video.

For Fieri, his family, including its four-legged members, always comes first.

“Family is always the first priority,” Guy told PEOPLE in September. “Most of my friends will [say] I haven’t changed. I think it’s because when I got into television, I’d already done what I wanted to do. I wanted to be a great dad.”

Along with their two sons,Hunter, 26, andRyder, 17, theDiners, Drive-ins and Diveshost, and his wife, Lori, helped raise nephew Jules, 23, following the death ofGuy’s sister Morganin 2011 from melanoma.

Part of being a great dad for Guy means instilling his strong work ethic in all three men.

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source: people.com