Above: Molly Smitten-Downes is this year's UK entry.
Every year, European nations come together to compete in the Eurovision Song Contest, battling against their neighbours for the most viewer votes.
Eurovision has a lot to answer for fashion-wise. Known for its naff costume choices, the competition can make very interesting viewing.
Let's take a look at the Eurovision Fashion of our favourite UK entries:
Cliff Richard sported this smart suit with a fabulously frilly shirt.
Lulu looks pretty in a pink floral dress..
Bright Colours: Buck's Fizz stood out in a rainbow of colours
Sequins & Sparkle: Gina G wore this glitzy outfit
Expect to see novelty, 'themed' Outfits: Schooch represented the UK with an air hostess-themed performance
Head-to-Toe Leather: In 2011, Bonnie Tyler went for an all-leather look..
And it's not just the United Kingdom turning up in an array of questionable and outrageous costumes.
Here are some of our favourite Eurovision outfits:
(Because you can only get away with dressing up as a butterfly at Eurovision.)
A not-so-subtle hint for her boyfriend, Finland's Krista Siegfrids rocked a wedding dress for her performance.
Zdob si Zdub from Moldova sported pointed hats, and even had a unicycle on stage.
Will you be watching Eurovision this year? Do you have a favourite Eurovision outfit?