Ashton Kutcher spilled the beans on his marriage to Mila Kunis.
Ashton and Mila kept their 2015 nuptials so tightly under wraps, nobody found out until after the event.
On The Ellen Show recently, Ashton finally revealed how two major celebrities managed to keep such a big secret - and it all has to do with a bit of social media trickery.
"It was a ninja effort. We really didn't want helicopters at a wedding - and it's a legitimate concern," Ashton explained.
"So, I was like posting things on social media that we were in different locations, we didn't want to be like screaming our vows at each other.
"So we went really under the radar with it."
Ashton also spoke about his daughter, Wyatt, who is now one and a half years old.
"She tries to kill herself on a regular basis. Like, she doesn't realise that's a cliff and that could be dangerous. She'll just jump off the thing. She don't know yet!" he told Ellen.
"You think they would come with instincts around fire and large falls - and they don't!"
Ashton, 38, and Mila, 32, met when they were just teenagers while filming 'The 70s show' in 1998, however, they didn't begin dating until 2012.
Watch Ashton's segment on The Ellen Show here: