I'm A Celebrity star, 36, and McFly singer, 35, got into character for the event as they dressed as a Pink Lady and a T-Bird for their outing on Saturday evening.
Emma, 45, and Matt also got the memo to dress-up as they donned the pink and black biker jackets required to embody John Travolta's Danny and Olivia Newton-John's Sandy.
Sharing a sweet snap from the outing, Tom winked and pointed towards the camera while Giovanna smiled brightly. He wrote in the caption: 'Grease is the word at the drive-in tonight in celebration of @mattwillis getting old. 'Emma and Matt enjoyed a dance together during the screening, with the former writing 'Grese lightnin' Happy birthday babe!' over the front.
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