Mila Kunis and husband Ashton Kutcher's ex wife Demi Moore team up in a commercial.
The pair feature in the advert for an internet provider where both stars are at a high school reunion.
In the minute-long clip, the award ceremony host calls nominees up to collect the award for 'most admired alum”.
Surrounded by her friends at a table, Mila, 38, gets up to collect her award and tells her pals: "This is so embarrassing. Guys, don’t make a scene!”
Demi, 59, sat at another table and tells her group that she couldn't win the award, adding: "There's no way it's me," she says with faux shock.
Then she grinned: "Was that good acting?"
As both actresses walk up to collect their award, they spot each other. But instead of the award going to either of the actresses, it's given to another member of the audience.
"It’s Anna Gomez, our first gigillionaire,” the presenter says. “With AT&T Fiber, Anna’s got the fastest internet with hyper gig speeds, so her family has crazy fast gaming and they stream movies in 8K.”
She added that she watched "so many movies", but didn't recognise Demi or Mila.
“I had no idea that we went to the same high school,” Demi told Mila.
“We have a lot in common,” Mila added.
The advert was actually Mila's idea and she reached out to Demi, who was "delighted" to be part of it.
Mila told Entertainment Tonight: "It was during my first collaboration meeting with AT&T that we discovered Demi was also a Fairfax High alum."
“I thought it would bring humour and laughs to what was already a great ad. I reached out to her and was so delighted she jumped on board.
The school reunion may have been dramatised, the pair went to the same California educational facility at different times.
But Ghost actress Demi dropped out in her junior year, but Mila graduated in 2001.
Ashton started dating Demi in 2003 and by 2005 the pair were married.
Demi had said that she'd found her "soulmate" in Ashton, writing in her autobiography: "He was 25. I was 40. But I’m telling you: we couldn’t feel it. We were totally in sync, from our very first conversation."
But six years later they split after it was reported that Ashton had cheated on Demi with a younger woman.
“I remember the night they met,” Demi recalled. “We were at a bowling alley with Rumer and when he went to switch out our shoes, she gave him her number on a napkin. Or that’s what he told me at the time.
"When we got home that night, and he showed it to me, I said, ‘That is just gross. We were there with our kid!’ I had a visceral response - It was revulsion. So the fact that he pursued her felt like a real ‘f*ck you.'”
Mila and Ashton originally met on the set of That 70's Show when Mila was just 15.
She once revealed in an interview in 2001 that the kiss between their characters Jackie Burkhart and Michael Kelso was her first ever kiss.
