Amanda Holden, 51, puts on a busty display strutting her stuff alongside Catherine Tate

She proved that age is just a number on Thursday as she showed off her supermodel walk.

Amanda Holden, took to Instagram to share a hysterical video of herself alongside actress Catherine Tate, 52, in character as the foul mouthed pensioner Joannie 'Nan' Taylor.

The pair strutted their stuff down the corridors of Heart FM to the LMFAO song Sexy And I Know It.

Supermodels:  Amanda Holden, took to Instagram to share a cheeky video of herself alongside actress Catherine Tate, 52, in character as the foul mouthed pensioner Joannie 'Nan' Taylor

In the slow motion video the braless Britian's Got Talent Judge,  beams as comedian Catherine plays to the camera.

Amanda wrote: 'Over 50 and still got it' before captioning: 'Sexy and we know it' complete with a fire emoji. 

The pair showed off their unique supermodel walk as they they sauntered towards the camera.

Runway:  The pair showed off their unique supermodel walk as they they sauntered towards the camera

Amanda wrote: 'Over 50 and still got it' before captioning: 'Sexy and we know it' complete with a fire emoji

51-year-old Amanda stunned in a matching pistachio wool blouse and skirt, with a generous slit showing off her gorgeously long legs.

The blouse, complete with key hole detail, clung to her fantastic figure as well as flashing cleavage.   

While Catherine sported the characters trademark costume, of overcoat and neck scarf.  

Green with envy: 51-year-old Amanda stunned in a matching pistachio wool blouse and skirt, with a generous slit showing off her gorgeously long legs

Get minted in a Pretty Lavish co-ord like Amanda

Smart, chic office wear doesn't have to be black and boring, you know. Amanda Holden is proof of that as every day she serves up colourful ensembles thanks to stylist Karl Willett.

One of her go-to looks is tonal dressing which she's pulled off in shades of orange, pink, blue and now sage.

This look is getting us in the mood for spring! Under her Marks and Spencer double-breasted coat, she's wearing the 'Serena' top knitted top by Pretty Lavish and teamed it with the matching 'Serena' skirt.

The great thing about investing in a co-ord like Amanda's is that you can wear the pieces together or separately, so you get a lot more for your money.

Snap up this set via the links. Why not check out Amanda's Aspinal of London bags too? Alternatively, add minty hues to your wardrobe with dupes from Missguided, Tory Burch and Victor Glemaud.

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In character: While Catherine sported the characters trademark costume, of overcoat and neck scarf

Transformation: Catherine was completely transformed as the hair and make-up department worked wonders on ageing her (right in 2018) 

And it wasn't just fans who raced to like and comment on the hysterical video, as the pairs famous friends joined in. 

With comedian Alan Carr commenting: 'Haha brilliant!'. 

While former Eastenders star Tamzin Outhwaite added 'This is brilliant' with clapping hands emojis.

Famous friends: With comedian Alan Carr commenting: 'Haha brilliant!'

LOL: While former Eastenders star Tamzin Outhwaite added 'This is brilliant' with hand clapping emojis

With Catherine hitting the publicity trail her co-star Matthew Horne has said he's finding it difficult to promote the comedy film, as war continues to unfold in Ukraine.

The actor, 43, plays the role of Jamie in the flick, which is based on the foul-mouthed elderly character from Catherine's sketch show. 

During an appearance on Lorraine on Tuesday, he said: 'It is hard to be promoting a silly comedy movie in this heartbreaking situation.'

However, show host Lorraine Kelly, 62, insisted people in the UK needed a bit of light relief at the moment, telling him: 'You know what, for goodness sake, do we ever need a belly laugh right now?

'Do we ever need something that's daft and silly and bawdy and rude – that's what we need right now.'  

The Nan Movie sees Nan and Jamie go on a road trip as she tries to repair her relationship with her estranged sister Nell (Katherine Parkinson) after it emerges Nell is dying.

Ukraine: During an appearance on Lorraine on Tuesday, Matthew Horne said: 'It is hard to be promoting a silly comedy movie in this heartbreaking situation

Comedienne Catherine's role of Nan is based on the popular character from her BBC Two sketch show which ran for three series from 2004 to 2006, along with four BBC One spin-offs, the Catherine Tate's Nan specials, which aired between 2009 and 2015.

However, while he feels awkward promoting the film due to the troubles in Ukraine, he Mathew says he did enjoy working on the project.

 He told Lorraine: 'It's an origins story and road trip all in one. In this film, there's a moment of tenderness from Nan that is really nice, albeit after an all night rave.

'(There was) a lot and a lot of improvisation! We did a lot of improv on the road, it was fantastic'. 

See The Nan Movie in Cinemas March 18 

In Cinemas: The Movie is released in cinemas on March 18 and sees Nan travel to Ireland to visit her estranged sister Nell