20 years after starring in Mean Girls, Lindsay Lohan and Lacey Chabert reunited to reenact the cafeteria scene from their hit teen movie on Wednesday’s episode of Watch What Happens Live.

The former child stars – who played Plastics Cady Heron and Gretchen Wieners – were joined by host Andy Cohen, who donned ‘Kim Zolciak’s old wig’ to fill in for the role of Regina George (Rachel McAdams).

‘120 calories and 48 calories from fat,’ the 56-year-old presenter said as 42-year-old Chabert erupted in laughter.

‘What percent is that?! I’m only eating foods with less than 30 calories from fat.’

Then Lindsay and Lacey both began cracking up after Andy stormed off with the line: ‘Whatever, I’m getting cheese fries!’

Before the skit, Cohen alerted Lohan to the time her father Michael Lohan randomly appeared in a season two episode of The Real Housewives of Atlanta back in 2009 ‘that was crazy.’

20 years after starring in Mean Girls, Lindsay Lohan and Lacey Chabert reunited to reenact the cafeteria scene from their hit teen movie on Wednesday’s episode of Watch What Happens Live

‘Wait, really?’ the 38-year-old SAG Award nominee replied shocked.

‘He just was at a restaurant and like Kim and Nene [Leakes] and Shereé [Whitfield] were fighting. It was crazy,’ The Real Housewives executive producer recalled.

‘My dad was there?’ Lindsay asked, still confused.

Read More The striking detail on Lindsay Lohan’s new face leaving fans puzzled

Andy responded: ‘And Nene’s like, “Michael Lohan’s here!” It was wild.’

Mark Waters’ critically-acclaimed adaptation of Rosalind Wiseman’s 2002 book Queen Bees and Wannabes amᴀssed $130.1M at the global box office.

Last year, Lohan was still pregnant with her 16-month-old son Luai Shammas when she filmed a $500K cameo as the Mathletes tournament moderator in Samantha Jayne and Arturo Perez Jr.’s musical remake of Mean Girls, which amᴀssed $104.8M at the box office.

And it’s been a full year since Walmart paid handsomely to reunite the Plastics – minus McAdams – as well as Daniel Franzese and Rajiv Surendra for a Black Friday commercial.

The Irish Wish producer-star also gave an update on her fully-authorized biopic on two-time Oscar nominee Ann-Margret while appearing on the Bravo boozy talk show.

The former child stars – who played Plastics Cady Heron and Gretchen Wieners – were joined by host Andy Cohen, who donned ‘Kim Zolciak’s old wig’ to fill in for the role of Regina George (Rachel McAdams)

42-year-old Chabert erupted in laughter as the 56-year-old presenter said: ‘120 calories and 48 calories from fat. What percent is that?! I’m only eating foods with less than 30 calories from fat’

Then Lindsay and Lacey both began cracking up after Andy stormed off with the line: ‘Whatever, I’m getting cheese fries!’

Instagram user @veronicamichellebrooks gushed: ‘Lacey is good! She’s still got it’

Instagram user @jess.lynn_5 gushed: ‘My millennial heart is so happy’

Instagram user @nique_honey wrote: ‘I love the comeback for Lindsay. She looks so good and I’m so happy she was able to get her life back on track’

Before the skit, Cohen alerted Lohan to the time her father Michael Lohan randomly appeared in a season two episode of The Real Housewives of Atlanta back in 2009 ‘that was crazy’

‘Wait, really?’ the 38-year-old SAG Award nominee replied shocked

The Real Housewives executive producer recalled: ‘He just was at a restaurant and like Kim and Nene [Leakes] and Shereé [Whitfield] were fighting. It was crazy’

‘My dad was there?’ Lindsay asked, still confused. Andy responded: ‘And Nene’s like, “Michael Lohan’s here!” It was wild’

Mark Waters’ critically-acclaimed adaptation of Rosalind Wiseman’s 2002 book Queen Bees and Wannabes amᴀssed $130.1M at the global box office

Last year, Lohan was still pregnant with her 16-month-old son Luai Shammas when she filmed a $500K cameo as the Mathletes tournament moderator in Samantha Jayne and Arturo Perez Jr.’s musical remake of Mean Girls

And it’s been a full year since Walmart paid handsomely to reunite the Plastics – minus McAdams – as well as Daniel Franzese and Rajiv Surendra for a Black Friday commercial 

The Irish Wish producer-star also gave an update on her fully-authorized biopic on two-time Oscar nominee Ann-Margret (pictured in 1964) while appearing on the Bravo boozy talk show

‘We’re working on the story,’ Lindsay revealed. ‘It’s exciting.’

Cohen cautioned Lohan that the role would require her to ‘dance your a** off’

The blonde beauty agreed: ‘I know, it’s going to be pretty intense. But it has to be the way that she wants it to be, so I really want it to be special in that way’

Lindsay was promoting her role as Avery in Stephen Herek’s Christmas rom-com Our Little Secret, which premiers next Wednesday on Netflix

Chabert was promoting her role as New York cafe owner Kathy Barrett in Jerry Ciccoritti’s Christmas rom-com H๏τ Frosty, which quickly amᴀssed 16M views to top Netflix’s Top 10 Films streaming in the States 

‘We’re working on the story,’ Lindsay revealed. ‘It’s exciting.’

Cohen cautioned Lohan that the role would require her to ‘dance your a** off.’

‘I know, it’s going to be pretty intense,’ the blonde beauty agreed.

‘But it has to be the way that she wants it to be, so I really want it to be special in that way.’

Lindsay was promoting her role as Avery in Stephen Herek’s Christmas rom-com Our Little Secret – premiering next Wednesday on Netflix – alongside Ian Harding, Kristin Chenoweth, and Tim Meadows.

Lohan – who’s spent the past decade living in Dubai – and her financier husband Bader Shammas executive produced Our Little Secret.

Long Island-born Lilo will also reprise her 2003 role as Anna Coleman opposite Jamie Lee Curtis in Nisha Ganatra’s mother-daughter swap sequel Freakier Friday, which hits US/UK theaters August 8.

And Chabert was promoting her role as New York cafe owner Kathy Barrett in Jerry Ciccoritti’s Christmas rom-com H๏τ Frosty, which quickly amᴀssed 16M views to top Netflix’s Top 10 Films streaming in the States.