Helena Christensen and Norman Reedus prove they're amicable exes as they wish son Mingus a happy 20th birthday together on Instagram

Their son turned 20 on Sunday.

And Helena Christensen and Norman Reedus, both 50, took to Instagram to wish their son Mingus a very happy birthday.

Helena shared a snap of their lad towering over her and Norman on his graduation day, along with nine other photos of Mingus taken over the years.

Towering over his mom and dad:  Helena and Norman Reedus took to Instagram to wish their son Mingus a very happy 20th birthday on Sunday

Towering over his mom and dad:  Helena Christensen and Norman Reedus, both 50, took to Instagram to wish their son Mingus a very happy 20th birthday on Sunday

She captioned the set: 'Today is a beautiful day because you were born, 20 years ago! Love you so much.'

At 6ft tall, he outstrips his statuesque mom, a former model, and his actor dad, who both stand at 5ft 10ins.

'Happy birthday to the coolest of all time,' The Walking Dead star captioned his Instagram post, which featured four snaps of his son over the years.

Helena also commented on Norman’s post, writing: 'Our baby boy is a young man and I love him more than anything.' 

' Love you so much': Helena Christensen posted 10 snaps of her son over the years and captioned the set, 'Today is a beautiful day because you were born, 20 years ago!'

' Love you so much': Helena Christensen posted 10 snaps of her son over the years and captioned the set, 'Today is a beautiful day because you were born, 20 years ago!'

Oi: The fun set also included a photo of the lad with legendary punk rocker, Iggy Pop

Oi: The fun set also included a photo of the lad with legendary punk rocker, Iggy Pop

One lad and his dog: Helena shared this adorable shot of Mingus and and his Australian Shepherd when they were both young

One lad and his dog: Helena shared this adorable shot of Mingus and and his Australian Shepherd when they were both young

Norman's girlfriend Diane Kruger, 43, posted five heart emojis. The couple share a daughter who was born last fall. They have yet to reveal her name or her face.

Helena and Norman split up in 2003 after five years together but the amicable exes are often seen together supporting their son.

They both turned out for Mingus's high school graduation in June 2018 

Snuggling up: Helena leaned on Mingus's shoulder as he cuddled his adorable dog

Snuggling up: Helena leaned on Mingus's shoulder as he cuddled his adorable dog

Keeping him warm: Mingus showed off his chest as his furry friend lay on him

Keeping him warm: Mingus showed off his chest as his furry friend lay on him

A few famous friends also shared their own birthday wishes for Mingus.

'20 years !!!!???!??! Where did the time go,' commented Cat Deeley, and singer Courtney Love wrote, 'Ahhh Mingus birthday dragon.'

Several of Norman’s costars from The Walking Dead commented on his post. 

Jeffrey Dean Morgan and Jon Bernthal both told Mingus to 'go get 'em brother.'

Model genes: Helena posted this sultry shot of her son as a few famous friends also shared their own birthday wishes for Mingus. '20 years! Where did the time go,' Cat Deeley wrote

Model genes: Helena posted this sultry shot of her son as a few famous friends also shared their own birthday wishes for Mingus. '20 years! Where did the time go,' Cat Deeley wrote

 

Helena Christensen and Norman Reedus wish their son Mingus a happy 20th birthday on Instagram

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