THE GREATEST – SIA (COVER) Jan 21, 2017 Cover, Cover emo, Cover sia, Rockin with my friends, Music Cover of THE GREATEST by SIA Performed by Vivian Hicks Originally written and performed by S.I.A.. Like 0 Thanks! You've already liked this « BLACK BEATLES – RAE SREMMURD (COVER) » ONE AND ONLY – ADELE (COVER)