All in the name of fancy dress, Elliott did his best Danny Zuko impression, while Chloe sizzled as Sandy Olsson - and we're sure they did John Travolta and Olivia Newton-John proud!
Chloe and Elliott arrived at a fairground in Kent on Sunday (27 July) and joined co-stars including Danielle Armstrong and James Lock, as well as Lydia Bright and Harry Derbidge.
The Grease-themed party marks the end of TOWIE's 12th series.
Keeping most of his outfit black, Elliott wore a white cardigan and those all-important white socks, while also sporting super slicked hair.
Meanwhile, Chloe showed off her figure in skin-tight black leggings, a vest top and a black leather jacket. She finished off her look with patent red heels and styled her hair into fabulous curls draped to one side.
Looking like a scene straight out of Grease, the loved-up couple posed together for a picture, and they later jumped on one of the rides!
Chloe and Elliott have been going from strength-to-strength in recent weeks. Restaurant owner Elliott recently declared his love for Chloe at his sister Leah Wright's wedding in Alicante, Spain.
"I'm not just in love with you," Elliott told Chloe. "I've fell for you completely, I'm totally in love with you. You're everything to me."
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