Don't move! This visitor got a bit of a shock when a butterfly decided to make a surprise landing...
The pretty butterfly was one of 600 which have been flown in to London from Belize in central America.
They're going to be part of a new exhibit at the Natural History Museum called Sensational Butterflies.
The insects will soon be fluttering around their new home, a massive tent which has been designed to be just like a rainforest!
The project is designed to show people what it's like to see the world through the eyes of a bug...
Visitors will be able to put on special specs which will give them butterfly vision!
New butterflies will be flown in from abroad each week as the cute creatures have very short life spans.