Four songs ultimately qualified to compete in the final on 26 February 2017 where a public vote exclusively selected "Line" performed by Triana Park as the winner.[5] All shows in the competition took place at the LTV Studio 6 in Riga, hosted by Ketija Šēnberga and Toms Grēviņš and broadcast on LTV1 as well as online via the streaming platform Replay.lv and the official Supernova website supernova.lsm.lv.Alternative broadcasts of the final also occurred on LTV7 with Elza Volonte and Ainārs Ostvalds presenting the show in sign language as well as online at lsm.lv with commentary by Aleksis Vilciņš and Karmena Stepanova.LTV broadcast two introductory shows on 22 and 29 January 2017 that covered the background preparation processes and performer auditions that occurred prior to the competition.[8] The jury participated in each show by providing feedback to the competing artists and selecting entries to advance in the competition.The international jury panel consisted of Petri Mannonen (Commercial Director at Universal Music Group Finland and the Baltics), Matthias Mueller (CEO of Crazy Planet Records Germany), Fruzsina Szép (festival director of Lollapalooza Berlin) and Joy Deb (songwriter, co-wrote the 2015 Swedish Eurovision winning song "Heroes").Commercial Director of Universal Music Group Finland and the Baltics Petri Mannonen was a guest juror for the semi-final.Intars Busulis together with singer and Eurovision Song Contest 2002 winner Marija Naumova were guest jurors for the final.[18][19] On 8 April, Triana Park performed during the Eurovision in Concert event which was held at the Melkweg venue in Amsterdam, Netherlands and hosted by Cornald Maas and Selma Björnsdóttir.The LED screens and floor transitioned from a black and white wave motion pattern to a neon backdrop with neon-figure people.Each nation's jury consisted of five music industry professionals who are citizens of the country they represent, with their names published before the contest to ensure transparency.This jury judged each entry based on: vocal capacity; the stage performance; the song's composition and originality; and the overall impression by the act.The individual rankings of each jury member as well as the nation's televoting results were released shortly after the grand final.
Triana Park during a rehearsal before the first semi-final