First staged in 1956, the Eurovision Song Contest has stood the test of time to become one of the most popular entertainment events of the year.
As highlighted by recent Betway research, the annual music competition has helped launch some massive global hits during its history.
From up-and-coming singers to music stars trying to resurrect their fading careers, Eurovision provides a platform for musicians to get themselves noticed.
With that in mind, we look at four of the most surprising acts to perform at Eurovision.
Olivia Newton-John – United Kingdom – 1974
Newton-John had some minor success before being selected as the United Kingdom’s entrant for Eurovision 1974 in Brighton.
She was unfortunate to run into future superstars ABBA, but acquitted herself well to finish joint-fourth alongside Luxembourg and Monaco.
Newton-John subsequently went on to enjoy a hugely successful career, selling more than 100 million records and winning four Grammy Awards.
She also famously starred alongside John Travolta in the musical film Grease in 1978 – not bad for someone who was not too well known before Eurovision.
Celine Dion – Switzerland – 1988
Dion was making her way up the music ranks when she was surprisingly chosen to represent Switzerland at Eurovision 1988.
She had previously built a reputation as a future star in Quebec and France, but was fired into another stratosphere after winning the contest.
Dion finished just ahead of UK entrant Scott Fitzgerald, with six points from the Yugoslavian jury in the final round of voting enough to seal the victory.
The French-Canadian has since gone on to become one of the best-selling artists of all-time, while Fitzgerald faded into obscurity.
Blue – United Kingdom – 2011
Blue were one of the biggest groups during the early part of the 21st century before surprisingly announcing a hiatus in 2004.
They eventually reformed seven years later, releasing their fourth studio album and representing the UK at Eurovision 2011 in Germany.
I Can finished in 11th place and scored 100 points, a long way adrift of the 221 points racked up by eventual winners Azerbaijan.
The group subsequently criticised the overly political nature of Eurovision voting after all four members declared themselves bankrupt.
Engelbert Humperdinck – United Kingdom – 2012
Desperate to end their run of poor Eurovision results, the UK chose 1960s legend Engelbert Humperdinck to represent them in 2012.
He opened the show in Azerbaijan with ballad Love Will Set You Free, but had become a distant memory by the time the voting started.
Only Belgium, Estonia, Latvia and Ireland voted for Humperdinck and he ended up next to the bottom of the standings with only Norway behind.
The singer finished a whopping 360 points adrift of Sweden’s Loreen who claimed top spot with the brilliant dance anthem Euphoria.