Japan

{| class="wikitable sortable" ! Edition !! Country !! Artist(s) !! Song !! Final !! Jury
 * Edition 1 || Flag_of_Japan.svg Japan || Rina Sawayama || "XS" ||31 || Yoikes
 * Edition 2 || Flag_of_Japan.svg Japan || Caroline Polachek || "Door" || 19 || Bálint
 * Edition 3 || Flag_of_Japan.svg Japan || Jibaku Shounen Band & Zing || "Nº 7" || 39 || Sins
 * Edition 4 || Flag_of_Japan.svg Japan || Perfume || "Let Me Know" || 31 || Sins
 * Edition 5 || Flag_of_Japan.svg Japan || Lastlings || "Take My Hand" || 14 || Sylta
 * Edition 6 || Flag_of_Japan.svg Japan || Hayley Kiyoko || "Feelings" || 40 || Cecil
 * Edition 7 || Flag_of_Japan.svg Japan || Bishop Briggs || "Jekyll & Hide" || 27 || Bamse
 * Edition 8 || Flag_of_Japan.svg Japan || Man with a Mission || "Dead End in Tokyo" || 6 || Asuto
 * Edition 10 || Flag_of_Japan.svg Japan || Mitski || "Geyser" || 4 || Furkan
 * Edition 11 || Flag_of_Japan.svg Japan || Rina Sawayama || "STFU!" || 11 || Cecil
 * Edition 12 || Flag_of_Japan.svg Japan || Red Mecca || "Set in Motion" || 26 || Maki
 * Edition 13 || Flag_of_Japan.svg Japan || Evade From 宇宙 & Yasuha || "Furaito-bi' 89 (Friday)" || 4 || Adil
 * - bgcolor="#fa8072"
 * Edition 14 || Flag_of_Japan.svg Japan || DJ Ozma || "Macchibo" || 54 || Toypa
 * Edition 15 || Flag_of_Japan.svg Japan || The Oral Cigarettes || "Kyouran Hey Kids!!" || 25 || David
 * Edition 16 || Flag_of_Japan.svg Japan || AliA || "Impulse" || 30 || Matrix
 * Edition 17 || Flag_of_Japan.svg Japan || Crimson Apple || "Break Your Heart Worse" || 27 || Azura
 * Edition 18 || Flag_of_Japan.svg Japan || Rina Sawayama || "Cherry" || 30 || Yoikes
 * Edition 19 || Flag_of_Japan.svg Japan || Mariya Takeuchi || "Plastic Love" || 31 || Kennet
 * Edition 20 || Flag_of_Japan.svg Japan || Tamanaramen || "The Light Behind My Eyelids" || 22 || Avkvi
 * Edition 21 || Flag_of_Japan.svg Japan || Reol || "YoiYoi Kokon" || 7 || EP
 * Edition 22 || Flag_of_Japan.svg Japan || Linked Horizon || "Guren no Yumiya" || 26 || Annette
 * Edition 24 || Flag_of_Japan.svg Japan || Shin Sakiura & AAAMYYY || "Night Running" || 40 || Cecil
 * Edition 25 || Flag_of_Japan.svg Japan || IZ*ONE || "Secret Story of the Swan" || 20 || Wizzard
 * Edition 26 || Flag_of_Japan.svg Japan || Macaroom || "Akuma" || 22 || Avkvi
 * Edition 27 || Flag_of_Japan.svg Japan || Kero Kero Bonito || "Only Acting" || 24 || Vika
 * Edition 28 || Flag_of_Japan.svg Japan || Atarashii Gakko! || "Pineapple Kryptonite" || 32 || Adil
 * Edition 29 || Flag_of_Japan.svg Japan || Last Dinosaurs || "Bass God" || 38 || Galaxtic
 * Edition 30 || Flag_of_Japan.svg Japan || LE SSERAFIM || "The Great Mermaid" || 10 || Azura
 * Edition 16 || Flag_of_Japan.svg Japan || AliA || "Impulse" || 30 || Matrix
 * Edition 17 || Flag_of_Japan.svg Japan || Crimson Apple || "Break Your Heart Worse" || 27 || Azura
 * Edition 18 || Flag_of_Japan.svg Japan || Rina Sawayama || "Cherry" || 30 || Yoikes
 * Edition 19 || Flag_of_Japan.svg Japan || Mariya Takeuchi || "Plastic Love" || 31 || Kennet
 * Edition 20 || Flag_of_Japan.svg Japan || Tamanaramen || "The Light Behind My Eyelids" || 22 || Avkvi
 * Edition 21 || Flag_of_Japan.svg Japan || Reol || "YoiYoi Kokon" || 7 || EP
 * Edition 22 || Flag_of_Japan.svg Japan || Linked Horizon || "Guren no Yumiya" || 26 || Annette
 * Edition 24 || Flag_of_Japan.svg Japan || Shin Sakiura & AAAMYYY || "Night Running" || 40 || Cecil
 * Edition 25 || Flag_of_Japan.svg Japan || IZ*ONE || "Secret Story of the Swan" || 20 || Wizzard
 * Edition 26 || Flag_of_Japan.svg Japan || Macaroom || "Akuma" || 22 || Avkvi
 * Edition 27 || Flag_of_Japan.svg Japan || Kero Kero Bonito || "Only Acting" || 24 || Vika
 * Edition 28 || Flag_of_Japan.svg Japan || Atarashii Gakko! || "Pineapple Kryptonite" || 32 || Adil
 * Edition 29 || Flag_of_Japan.svg Japan || Last Dinosaurs || "Bass God" || 38 || Galaxtic
 * Edition 30 || Flag_of_Japan.svg Japan || LE SSERAFIM || "The Great Mermaid" || 10 || Azura
 * Edition 24 || Flag_of_Japan.svg Japan || Shin Sakiura & AAAMYYY || "Night Running" || 40 || Cecil
 * Edition 25 || Flag_of_Japan.svg Japan || IZ*ONE || "Secret Story of the Swan" || 20 || Wizzard
 * Edition 26 || Flag_of_Japan.svg Japan || Macaroom || "Akuma" || 22 || Avkvi
 * Edition 27 || Flag_of_Japan.svg Japan || Kero Kero Bonito || "Only Acting" || 24 || Vika
 * Edition 28 || Flag_of_Japan.svg Japan || Atarashii Gakko! || "Pineapple Kryptonite" || 32 || Adil
 * Edition 29 || Flag_of_Japan.svg Japan || Last Dinosaurs || "Bass God" || 38 || Galaxtic
 * Edition 30 || Flag_of_Japan.svg Japan || LE SSERAFIM || "The Great Mermaid" || 10 || Azura
 * Edition 28 || Flag_of_Japan.svg Japan || Atarashii Gakko! || "Pineapple Kryptonite" || 32 || Adil
 * Edition 29 || Flag_of_Japan.svg Japan || Last Dinosaurs || "Bass God" || 38 || Galaxtic
 * Edition 30 || Flag_of_Japan.svg Japan || LE SSERAFIM || "The Great Mermaid" || 10 || Azura
 * Edition 29 || Flag_of_Japan.svg Japan || Last Dinosaurs || "Bass God" || 38 || Galaxtic
 * Edition 30 || Flag_of_Japan.svg Japan || LE SSERAFIM || "The Great Mermaid" || 10 || Azura
 * Edition 30 || Flag_of_Japan.svg Japan || LE SSERAFIM || "The Great Mermaid" || 10 || Azura