I've seen a few faces and names on the MTV version of the sound of 2015. I've heard Becky Hill and she's alright.Also Saint Raymond- great song 'I want you to know that I want you you know that'. Obviously thats not the title but its the hook and it's dead catchy. Song is a cross between the 1975 and Bastille. Also Melissa Steele is on the MTV list. Love her song'Kisses for breakfast'- what a damn good op hook 'kisses for breakfast early in the morning'. Also her collab with Kreshane 'Drunk and incapable' is a very clever Pop song with a great groove too.
Don't know or have heard from any on the BBC R1 list though there is some cross over ie George the Poet and Years and Years.