Sound of 2015's BBC Introducing stories
Since it's inaugural year in 2013, the BBC Sound Of poll has curated the most exciting new artists, on the verge of moving on to big things in the music industry.
This year the poll's fifteen act longlist contains no less than six acts who have performed on our festival stages, five of them have also been supported by their local BBC Introducing radio programme. So before they all have a huge 2015, take a listen and look through those special early Introducing performances, that first got people talking.
James Bay plays live for BBC Introducing in Beds, Herts and Bucks

James Bay performs Heavy Handed on BBC Introducing
James Bay performs Heavy Handed on BBC Introducing
Låpsley at Glastonbury 2014

Lapsley - Painter
Lapsley perform Painter at Glastonbury 2014
Rae Morris debuts at Reading Festival in 2011

Rae Morris - Reading Festival Highlights
Watch highlights of Rae Morris performing on the BBC Introducing Stage at Reading Festival 2011.
Slaves stun Reading in 2013

Slaves - Beauty Quest at Reading Festival 2013
Slaves - Beauty Quest on the BBC Introducing Stage on Friday at Reading 2013
SOAK sparkles at Radio 1's Big Weekend in Derry-Londonderry

SOAK - Explosion (Live in Derry~Londonderry)
The Derry singer performs in her hometown for BBC Introducing Live in Derry~Londonderry.
Sunset Sons light up Reading 2014

Sunset Sons - She Wants
Sunset Sons perform She Wants at Reading 2014
Following the announcement of the longlist, the top five shortlist is revealed in a countdown between 5th and 9th January 2015, on the BBC Radio 1 Breakfast Show.
Find out more about all the BBC Sound Of 2015 artists and how the poll is curated here.