Which song says "u gave her an invisible sky/star"?

I saw this video with a blond girl singing a song which lyrics I could barely hear. She was blonde and was wearing this fabric on her hair that made her look kinda hippie/gipsy. Two guys sat by her side and one was playing percussions. Behind her, a piano and some other lyrics said: u hold on when u say goodbye. Silly question but I have no clue who this chick is.