Customers at an ice cream parlour in the US had quite a shock when they discovered that their frozen treat was being served by a Wimbledon champion.
Tennis ace Andy Murray went undercover in a wig, hat and glasses selling ice creams at the US Masters in Cincinnati.
But his real identity was soon discovered and Andy happily put down the ice cream scoop for photos with his fans.
Andy Murray had a very short career as an ice cream man before he was spotted. Maybe try a moustache next time Andy.
Here are a few other celebrities who have been a little sneaky and tried to disguise themselves.
Prince Harry disguised himself as his brother, Prince William, Duke of Cambridge, during a run. Confusing!
Not really a disguise, just an ordinary day for Lady Gaga, in one of her many weird and wild outfits.
Is that Spiderman? No! It's a wizard. Harry Potter star Daniel Radcliffe wore the famous crime-fighter's suit to sneak around last year's Comic-con.
Justin Bieber fails to pull off a convincing disguise at an award ceremony in America.
Who could this masked wonder be?! It's Nancy Cartwright, the voice of everyone's favourite cartoon schoolboy, Bart Simpson.