David Walliams looked very different as he donned a blonde wig for Britain's Got Talent auditions on Monday.
Auditions for the show, which is soon to hit our screens for a new season, are currently underway at London Palladium.
David and other BGT judges Alesha Dixon, 43, and Amanda Holden, 50, posed while wearing costumes that resembled those of the Pink Ladies from the hit movie Grease.
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Amanda and Alesha wore matching pink jackets, while David channelled his inner Sandy.
David, 50, wore a white shirt tucked into a lemon coloured skirt, with matching cardigan.
Captioning one post on Instagram which showed David with his "hair" in pigtails as he posed on a car, he said: "Sandy from GREASE @bgt".
Another upload, which showed the three judges together, was captioned: "On the way to work. @aleshaofficial @noholdenback @bgt"
Britain's Got Talent fans were in stitches, with many rushing to comment on the photos.
aidannicholl said: "Sandy! Tell me about it, stud!"
lyndsey_castle said: "Britney?!"
coxy.official said: "Grease is the word, does that mean @simoncowell is a T-Bird"
Britain's Got Talent will return later this year on ITV and the ITV Hub.
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