Unknown singer Molly Smitten-Downes has been unveiled as the hopeful who BBC chiefs believe could help to raise the UK's flagging fortunes after recent flops at Eurovision.
The 26-year-old from Leicestershire has been chosen to perform her self-written song Children Of The Universe.
She will compete in front of a potential TV audience of 120 million at the contest in Copenhagen on May 10.
"To represent the United Kingdom in such a huge competition, not only as a singer and performer but as a songwriter is an unbelievable honour. I hope I can do us proud," the singer said.
Molly Smitten-Downes has been writing songs for a decade and has supported acts such as Jake Bugg, Tinie Tempah and Labrinth.
Austria was ridiculed for sending a drag queen to Eurovision but Conchita Wurst, previously Tom Neuwirth, won for the first time since 1966.
UK hopeful Molly Smitten-Downes had been among those tipped to place highly, but the night was for Austrian drag-queen Conchita Wurst.
The UK has had some embarrassing disasters at Eurovision, from out-of-tune twins to dubious experiments with rap.