The girls were pictured on stage at the Theatre Royal Drury Lane in London's West End on Saturday (26 April) after being given a backstage tour of Charlie and the Chocolate Factory.
Chloe had gone to the theatre to celebrate her daughter Madison's ninth birthday and invited Nicola along with her son Rocky to join in the fun.
While at the theatre, the girls were given a sneak peek behind-the-scenes and even got to walk on the stage and pose for a picture together in front of the gates to Willy Wonka's factory.
Sharing the photograph on Instagram, Chloe said: "On the stage.... Dah dahhhhhhhh woo @nicolamclean."
They were also able to kick back and relax on the astro turf set - right in front of a pond filled with 'chocolate' balls!
"Backstage at Charlie and the Chocolate Factory with @nicolamclean30 #charliechoc," she added, alongside another photograph.
It's been a weekend packed with birthday celebrations for lucky Madison, who kicked things off with a limo ride on Friday.
After visiting the theatre on Saturday, Madison and her friends went to Planet Hollywood for a meal and was treated to a gorgeous Disney cake inspired by the film Frozen.
Chloe had the camera to hand as Madison blew out her candles and, commenting on the snaps, said: "My princess celebrating her 9th birthday!!"
What a birthday to remember!
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