Lindsay Lohan gives behind-the-scenes update on Freaky Friday sequel with her 'best friend' Jamie Lee Curtis - as she reveals she has a DAUGHTER in the new movie

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Lindsay Lohan has opened up about the 'fantastic' experience she is having on the set of Freaky Friday 2 alongside co-star, and 'best friend,' Jamie Lee Curtis.

The pair delighted fans with news that they had officially started filming the highly-anticipated sequel on Monday, posting pictures and videos from the set of the film.

Though details about the plot are still being kept under wraps, Lindsay, 37, confirmed to Good Morning America that her character, Anna Coleman, will have a daughter in the new film - and revealed she had to take guitar lessons to get into character.

'Well, I can’t say much, but I am taking guitar lessons and I do have a daughter in the movie,' she said.

'It’s going to be a really Freaky Friday. Much freakier than you would expect.'

Lindsay Lohan has confirmed that her character, Anna Coleman, will have a daughter in Freaky Friday 2

Lindsay, 37, and Jamie Lee Curtis, 65, delighted fans with news that they had officially started filming the highly-anticipated sequel on Monday

One thing the Mean Girls star has been enjoying the most is getting the chance to work with her on-screen mom Jamie, 65, once again.

'It's fantastic,' she said. 'We all have so much fun. It's so great to have that... you always want to have a good time. 

'It’s just lot of love, lot of fun, lot of laughs. It's a great experience.'

She continued: 'Jamie and I have stayed in touch over the years. They always say when you have a best friend, or someone you're really close with, and you cannot see them for years and years, but when you see them again, it's like you never separated. 

'I think just always, women supporting women is such an incredible thing.'

The stars are reprising their iconic mother-daughter roles from the 2003 film, 21 years after the original flick became a household classic.

Their first photos from the Walt Disney Studios set even gave a subtle nod to the comedy's premise - a mother-daughter body swap. 

Jamie is seen sticking out her tongue while throwing up the rock and roll sign as Lindsay sits upright and sweetly smiles at the camera. 

The studio captioned the photo: 'The Colemans are back and coming to theaters in 2025! The sequel to Freaky Friday is now in production!'

Fans flocked to the comments section to express their excitement, with one X user writing: 'This is the most iconic reunion in history.'

Another chimed in: 'I need Chad Michael Murray back.'

In Freaky Friday- a remake of the 1976 movie starring Jodie Foster - the pair play straight-laced psychiatrist mom Tess and high school rocker daughter Anna, who end up swapping bodies

Lindsay teased: 'It’s going to be a really Freaky Friday. Much freakier than you would expect'

Although Disney has not yet shared details about the sequel's plot, Lindsay took to Instagram to share a behind-the-scenes look at filming.

A video showed the camera panning from a photographer to the Parent Trap star and the Halloween actress posing back-to-back for pictures, popping their heads out of their trailers, and sharing a sweet moment while sitting on the trailer steps.   

She captioned the clip: 'We’re back!'

Jamie reposted the picture of herself and her on-screen daughter to her Instagram, captioning the shot: 'WE ARE FREAKING OUT because the Coleman's are getting FREAKY AGAIN!' 

To ensure fans couldn't miss the news, she also shared it on her Instagram Story, writing: 'It begins! Get your freak on!' 

Back in March, Lindsay told People that the Freaky Friday sequel was 'in the process' and that she was 'excited to work with Jamie again and see how much further we can take it.'

'We talk almost every other day in general so I think we're going to have a lot of fun with this,' she said.

In Freaky Friday - which was a remake of the 1976 movie starring Jodie Foster -  Jamie and Lindsay play the straight-laced psychiatrist mom Tess and high school rocker daughter Anna, respectively, who end up swapping bodies following a heated fight.

The film also starred Mark Harmon as Tess' fiancé and Chad Michael Murray as Anna's boyfriend, Jake.

Lindsay gushed: 'It's fantastic. We all have so much fun. It's so great to have that... you always want to have a good time'

 The stars are reprising their iconic mother-daughter roles 21 years after the remake became a household classic

And in honor of the movie's 20th anniversary, the costars spoke to The New York Times about their 'easy' friendship.

'We met in an office, did the read-through, and it was game on in a big way. I had to let go of every control mechanism and just let it fly,' Jamie recalled. 'Lindsay was as fluid as I was. If you look at The Parent Trap, she has a facility as an actor that is really impressive. It was a big job. It was a big production. And our relationship was very easy.'

She added that the fandom started asking when they could expect a second film. 

'As I went around the world with Halloween, people wanted to know if there was going to be another Freaky Friday,' Jamie told the outlet. 'Something really touched a chord. When I came back, I called my friends at Disney and said, "It feels like there's a movie to be made."'