'Troublemaker' singer Olly fell foul to the presenting duo in a brand new 'Undercover' segment for their entertainment show, Ant & Dec's Saturday Night Takeaway.
Ant & Dec infiltrate Olly's final session for his wax figure, which is going to reside in Madame Tussauds in Blackpool.
Olly believes he is going for a genuine session with the Tussauds team, and he is also led to believe that he is the first celebrity in the world to be measured by their brand new scanning machine.
However, little does he know that the scanner is fake! While Ant is transformed into new caretaker Sean, Dec plays the inventor of the scanner, boffin Gareth.
Ant & Dec even make Olly dress in a very tight leotard, with green stickers plastered all over his face!
Watch a clip of Olly's prank below:
X Factor star Olly, said: "Ant & Dec got me hook, line and sinker. I had no clue that this was a prank even when they made me wear the tightest leotard! I love a practical joke so boys beware, I might just have a few ideas up my sleeve to get you back!"
The new series of Ant & Dec's Saturday Night Takeaway starts on Saturday 21 February at 7pm on ITV.
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