At last! It looks like summer is on its way, so the perfect time to dig out those shades...
But it isn't just the humans at London Zoo who have been trying out their summer looks.
Are these my colour? These cheeky monkeys have been stealing visitors' sunglasses as they pass through their home.
Keepers at the zoo say that it has become such a big problem that they're having to train the monkeys to stop their shady habit!
The trainers have been covering shades with mushed-up bitter apple, which has a really nasty taste!
The keepers hope that when they pick up the shades for a nibble and get a gross taste they'll learn to stop sneaking the sunnies!
It's not the first time the pesky primates have got in trouble for stealing from visitors...
Four years ago trainers had to stop the spider monkeys from pinching mobile phones!