HOLLYWOOD star Michael J. Fox paid tribute to his lookalike son Sam in a rare photo to celebrate his 34th birthday.
The Back To The Future actor, 61, shared a sweet photo of his eldest child blowing out the candles on his birthday cake.
Michael captioned it: “Happy Birthday to my big bouncing baby boy @palekidd you are the best.
“Proud to be your pops. Love you!”
Many fans could not believe the striking similarities between the father and son duo.
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One wrote: "Happy Birthday Sam, you look so much like your dad here," while another posted: "Have a special day Sam, you and your dad are the spitting image."
In another photo, Michael warmly embraced his son and gave him a kiss on the cheek as they posed in front of a waterfall.
Michael's wife, Tracy Pollan, also celebrated their son’s birthday on Instagram, sharing a photo of him riding a horse and calling him “the best son ever.”
She wrote: “You fill my life with so much joy, humour, kindness, and random information that I never knew! I love you."
Michael and Tracy also share three younger children, twin daughters Aquinnah and Schuyler, 28, and daughter Esmé, 21.
For over 30 years, the Golden Globe winner has been married to his wife Tracy Pollan.
In 1988, Tracy tied the knot with Back to the Future star Michael J. Fox and held their wedding in Woodstock, Vermont.
Michael and Tracy have co-starred in various projects together including Family Ties, Spin City, Nightcap, and Bright Lights, Big City.
Michael was just 29 when diagnosed with the Parkinson's disease - an incurable condition, which is slowly robbing him of the ability to control his body.
In 2020, he revealed what his diagnosis meant for his career.
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Michael was diagnosed with Parkinson's - a long-term degenerative disorder of the nervous system - at the age of 29 in 1991, but kept his condition secret for seven years.
He was told by doctors at the time that he only had ten years of working left before his condition would have deteriorated too much.
The Family Ties star reflected on the longevity of his career in his new book, No Time Like The Future: An Optimist Considers Mortality.
"There are reasons for my lapses in memorization," Michael wrote, in an extract obtained by People.
Michael went on: "Be they age, cognitive issues with the disease, distraction from the constant sensations of Parkinson’s, or lack of sensation because of the spine... but I read it as a message, an indicator.
"There is a time for everything, and my time of putting in a twelve-hour workday, and memorizing seven pages of dialogue, is best behind me. At least for now."
The father-of-four said he has come to accept that this may be the "end of my acting career".
