The Fonz is heading back to our screens... but not as you know him.
Henry Winkler, best known for his days as the supercool Fonz on US sitcom Happy Days, will appear on CBBC as a teacher called Mr Rock in a new show based on his children's books.
After being diagnosed with dyslexia as an adult, Winkler penned Hank Zipzer: The World's Greatest Underachiever, following the adventures of 12-year-old Hank and based on the actor's own experiences growing up with the learning disorder.
Hank's exploits - which are co-written with Lin Oliver - are being turned into a 13-part series on the BBC's kids channel.
"The stories are inspired by the true life experiences of Henry Winkler and how he felt growing up with dyslexia," said executive producer Sue Nott.
"At CBBC, we try to reflect the lives of children back at them and Hank Zipzer shows that achievement comes in all shapes and sizes - and it's set to be very funny too."
Since his days playing The Fonz, Winkler has toured schools in the UK, talking to children about his dyslexia, and was awarded an honorary OBE in 2011 for his charity work. He is currently appearing in US web series Childrens Hospital.