The London-based trio had a successful 2014, and now they’re being tipped for even bigger success in 2015.
Speaking of the win, band members Mikey Goldsworthy, Emre Turkmen and Olly Alexander, state: “We can't really get our heads round it, Olly nearly passed out when we found out, it was so surreal and emotional.
“It feels like it means we’ve got a real shot, which means the world to us. People are going to listen to what we’re going to do, and we’ve just got to not muck it up. We’ve got to make the most of it and deliver.”
The list was first issued in 2003, and last year’s winner Sam Smith has had a tremendous 12 months.
His debut album ‘In the Lonely Hour’ was a huge hit on both sides of the Atlantic, and since finding fame, he’s rubbed shoulders with everyone from Taylor Swift to Kim Kardashian.
Years and Years debut album is due out in 2015, here are 10 other things we're looking forward to this year...
10 Things To Look Forward To In 2015
Taylor Swift's '1989' tour(01 of10)
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If Taylor's AMAs performance was anything to go by, fans who've nabbed tickets for the 'Shake It Off' creator's 2015 world tour are in for a treat. (credit:Matt Sayles/Invision/AP)
Benedict Cumberbatch getting married(02 of10)
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The 'Sherlock' star surprised everyone by announcing his engagement in The Times' classifieds section. Benedict and Sophie Hunter are expected to wed at some point in 2015. Jealous? Us? *cries into a family size bag of crisps* (credit:Evan Agostini/Invision/AP)
Luther's return(03 of10)
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Idris Elba is set to reprise his role as the troubled detective for a two-part special next year. (credit:BBC/Facebook)
'EastEnders' live week(04 of10)
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The BBC1 soap is going live again, and the identity of Lucy Beale's killer will FINALLY be revealed.
Adele's third album(05 of10)
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It's been over three years since Adele stunned us with '21' - fingers crossed another release is on the cards... (credit:Chris Pizzello/Invision/AP)
'Fifty Shades Of Grey' Hits The Big Screen(06 of10)
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It's been a long wait but on Valentine's Day, we will FINALLY get to see the first '50 Shades' film. (credit:Universal)
'Broadchurch' is back(07 of10)
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The teaser trailers give very little away, but the cast has been confirmed for the hit show's second series.
'Star Wars: The Force Awakens'(08 of10)
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JJ Abrams has been incredibly secretive about the upcoming 'Star Wars' installment, though we do know that it should hit the big screen in December 2015.
Jacqueline Jossa and Dan Osborne will welcome their baby(09 of10)
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'EastEnders' star Jac and 'TOWIE' regular Dan are will welcome a new addition in 2015. Let's just hope they get back together for his/her arrival.
Glastonbury Festival(10 of10)
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Can anyone top Dolly Parton's 2013 performance? We shall see... (credit:David Jensen/EMPICS Entertainment)