Michael Underwood surprised This Morning presenter Phillip Schofield and the show’s viewers on Tuesday as he shared on the programme that he is now a teacher.
Underwood, who is known for presenting stints on CBBC as well as CITV, appeared on the show from the school he works at to promote a children's writing competition alongside TV star wife Angellica Bell.
Schofield remarked: "Michael, I had no idea. You're a teacher! Are you at school now?
"I am at school right now, my class is here," Underwood, 44, confirmed before turning the camera round to his pupils. "Say hello, boys."
Explaining his career move, Underwood shared: "At university that's the degree I did, a teaching degree, originally."
After moving into television once he graduated, Underwood worked in children's TV and acted as host for shows such as The Big Bang, Jungle Run and Ministry of Mayhem.
He told the hosts he returned to teaching when "work was quiet" for him while Bell was "flying in her career".
"I started to think about using the skillset that I’ve developed over the years and put it into something like teaching. I decided to go for it," he shared.
Schofield wasn't the only one who wasn't in the know as This Morning's Lizzy Cundy also shared her surprise at Underwood's new profession.
She tweeted: "My old buddy Michael Underwood is a teacher !!! Wow I never knew !! Incredible !! And what a great competition 500 words #ThisMorning.”
Fans at home were taken aback by the news too, as one remarked: "Michael Underwood is now a teacher?! #thismorning."
"Omg he’s a teacher? Wow #thismorning," said another.
On Tuesday, Underwood and Bell, who are parents to two children, launched a new 500 Words kid's writing competition which aims to open up the conversion about Black Lives Matter across the UK.
500 Words was initially developed by Chris Evans in 2011 and is the largest story writing competition for children in the UK.