Akuyaku◇Kyosokyoku

"Akuyaku◇Kyosokyoku" (アク役◇協奏曲) is an ending theme song for three episodes in the latter half of Stardust Crusaders (Anime). The song is sung by the characters Oingo (Makoto Yasumura), Boingo, and Hol Horse , and is used as the ending for episodes featuring the characters together in place of the usual ending theme "Last Train Home".

The first half of the song is used after, and is titled "Akuyaku◇Kyosokyoku ~Oingo and Boingo~" (～オインゴとボインゴ～). The second half of the song is used in the episodes and  as "Akuyaku◇Kyosokyoku ~Hol Horse and Boingo~" (アク役◇協奏曲 ～ホルホースとボインゴ～).

Oingo and Boingo
The ending is entirely animated in the style of Tohth's illustrations, beginning first with Oingo and Boingo hanging out of a cartoon airplane with a snake's head which flies off-screen. The airplane is then shown colliding into the orange-bomb Oingo made, bouncing off into a purple moon and finally into a cartoon sun - causing a lollipop to fall out of its mouth. Panning out, the brothers are shown in the deserts of Egypt making rapid arm gestures as they continuously cut closer to the screen. Both brothers raise their hands as money flies into the air, which then transitions to a new page of Tohth with Oingo walking on a sidewalk. Tohth's page turns as Oingo smiles and quickly spins his head clockwise until it transforms into Jotaro's face. Oingo continues this, transforming into Polnareff, Iggy, and Joseph before returning to normal. Oingo's card appears - highlighting his Stand, Khnum. The page turns to reveal Boingo walking down a sidewalk as a box of donuts and binoculars hover behind him. Boingo is shown to be reading from Tohth, transitioning to him sitting on a hillside as his Stand's card also appears.

In a format similar to a manga panel, the brothers both dance together while several cartoonish characters and symbols float by in a background consisting of a pink skyline. Both brothers jump offscreen onto a new page, continuing to dance as multiple prophecy pages from Tohth horizontally scroll by. The screen zooms in on both brother's faces before cutting to another page, where pictures of the comic artist and Jotaro brutally dying hover above a twilight covered sky. Oingo and Boingo continue their rapid arm movements from earlier before transitioning to a panel of the brothers casually pointing at each other. Both brothers are then being beaten up by hired thugs before cutting to them lying in an ambulance, covered in bandages. As the ending comes to a close, the hospital where both brothers recover is shown before fading to black.

Hol Horse and Boingo
Just like the previous version, the ending is entirely animated in the style of Tohth's illustrations except Hol Horse takes the role of Oingo. It begins with Hol Horse holding a suitcase, which contains Boingo tucked in, hanging out of a cartoon airplane that has a snake's head. The plane flies off-screen before crashing into the ground. Panning out, Hol Horse and Boingo are shown in the deserts of Egypt making rapid arm gestures as they continuously cut closer to the screen.

The scene transitions to a new page of Tohth with Hol Horse bobbing his head up and down while shooting Emperor. The tarot card for Emperor then appears beside him. Tohth's page turns as Hol Horse smiles while holding two fingers up, with the text "NO. 2!" behind him. On the next page, Hol Horse is holding two fingers up with both hands while Hol Horse and Boingo smile at each other. However, as Hol Horse questions if he'll really be okay with this kid, Hol Horse's fingers rotate 90 degrees and their smiles both become worried expressions. The page flips again to reveal Boingo running on the sidewalk while inside a suitcase with both of his arms flailing around and Tohth hovering beside him. On the next page, Boingo is shown to be reading from Tohth with an angry and determined expression on his face, as he thrusts his arm into the air and steam blows from his nostrils.

It transitions to an angry Boingo moving his arms up and down while Oingo's head is above him in the clouds. Zooming into Boingo's mouth opening and closing, the text "ZETTAI" and "100%" appear out of his mouth along with the head of a cartoon elephant wearing glasses and sticking its tongue out. On the next page, Hol Horse has a panicked expression while Boingo is smiling, and the two shake their hands up and down.

In a format similar to a manga panel, Hol Horse and Boingo both dance together while looking at each other. Multiple prophecy pages from Tohth horizontally scroll by behind them. The two give each other high fives and then cross over to the opposite side as their backs face each other. While both of them have smug faces with their arms held up high as if they're claiming victory, Avdol, Polnareff, Joseph, and Jotaro are seen spinning rapidly in the background before they each fly off-screen one by one. Hol Horse and Boingo continue their rapid arm movements from earlier before transitioning to a panel of the combo casually raising their arms up at each other.

As it zooms into both of their faces, Hol Horse's face is shot by his own bullets. About to end, it transitions to Boingo walking by himself in a spotlight with his arms in the air. Iggy then appears with a spotlight as well and bites Boingo's butt before it fades to black.

Lyrics
{{Lyrics 漫画で予言〜 必ず当たるよ間違いないんだ とっても内気でいつも独りぼっちさ 書物の神「トト」！ Manga de yogen~ Kanarazu ataru yo, machigai nain da Tottemo uchiki de itsumo hitoribotchi sa Shomotsu no Kami: “Toto”! I prophesize with comics~ It comes true without fail, there's never any mistake I'm very shy, so I'm always alone, though. The god of knowledge: Tohth! }} {{Lyrics そうやってきただろ Sō yatte kita daro Hasn't it so far? }} {{Lyrics 予言の通りに行動すれば すべてうまくいく！ そうやってきただろ オインゴ　ボインゴ　兄弟！ (ブラザーズ) 信じてるぜ！ 信じてるよ！ オインゴ　ボインゴ　兄弟！ (ブラザーズ) くじけちゃダメだよ 人生とはそういうものだから Yogen no tōri ni kōdō sureba Subete umakuiku! Sō yatte kita daro Oingo Boingo Burazaazu! Shinjiteru ze! Shinjiteru yo! Oingo Boingo Burazaazu! Kujikecha dame da yo Jinsei to wa sō iu mono da kara! If we act according to the prophecy... Everything will go great! Hasn't it so far? Oingo Boingo Brothers! Believe it! I believe! Oingo Boingo Brothers! Don't get disheartened! 'Cause that's just how life goes! }} {{Lyrics 信じてよぉ〜 ホルホース ボインゴ コンビ！ Shinjite yo! Horu Hōsu Boingo konbi! Just believe it! Hol Horse Boingo combo! }} {{Lyrics はじきの使い手だ〜 カードの暗示は皇帝(エンペラー) 立ち位置二番手で 誰かと組んで輝くのさァ！ だがよぉ コイツで大丈夫かぁ？ Hajiki no tsukaite da Kādo no anji wa "Enperā" Tachi ichi niban tete Dare ka to kunde kagayaku no sa! Daga yo koitsu de daijōbu ka? and I'm a pistol user. My card represents the Emperor. I'm always second in a pair. I'm a shining star with a partner by my side! But am I really gonna be ok with this kid? }} {{Lyrics 漫画で予言 とっても内気なんだけど 勇気を出すよ お兄ちゃんの仇を討つんだ！ 僕の漫画の予知は ぜーったい 100% です！ Manga de yogen~ Tottemo uchiki nan da kedo yūki o dasu yo Oniichan no kataki wo utsun da! Zettai hyaku pāsento desu! Zettai hyaku pāsento desu! I prophesize with comics~ Even though I'm really shy, I'm gonna be courageous now! I gotta avenge my big bro! The predictions in my comic.... are one hundred percent true! }} {{Lyrics 突拍子もなくて信じられんぜェ… Toppyōshi mo nakute shinjirarenu ze… It's so crazy I can hardly believe it! }} {{Lyrics 予言の通りに行動すれば 全て上手く行く！ 信じるからなぁ！ ホルホース ボインゴ コンビ！ 信じるんです、はい！ OK,信じるぜェ！ ホルホース ボインゴ コンビ！ 運命と言うのは 正確には読み解けないものさ Yogen no tōri ni kōdō sureba Subete umakuiku! Shinjiru kara na! Horu Hōsu Boingo Konbi! Shinjirun desu hai! Okay Shinjiru ze! Horu Hōsu Boingo Konbi! Unmei toiu no wa Seikaku ni wa yometokenai mono sa If we act according to the prophecy... Everything will go great! I really believe in ya! Hol Horse Boingo Combo! Just believe in me, alright!? Okay, I believe in ya! Hol Horse Boingo Combo! This thing known as fate... ...is something you can never, ever really know for sure! }} {{Lyrics きっとこうなる運命だったんだ 復習なんて凄くバカバカしく思えてきました もう忘れましょう 僕のスタンドは兄弟の幸せや困ってる人のために役立てましょう Kitto kō naru unmeidattanda Fukushū nante sugoku bakabakashiku omoetekimashita Mō wasuremashō Boku no Sutando wa kyōdai no shiawase ya komatteru hito no tame ni yakudatemashō I'm sure it was destined to be like this Looking back, it seems very foolish Forget it I'll use my Stand for my brother's happiness and to help those in need }} {{Lyrics 信じてるよ！ オインゴ　ボインゴ　兄弟 待ってるぜ！ 今から帰るよ！ オインゴ　ボインゴ　兄弟 すべてうまくいく！ そうやってきただろ オインゴ　ボインゴ　兄弟 くじけちゃダメだよ 人生とはそういうものだから Shinjiteru yo! Oingo Boingo Burazāzu! Matteru ze! Ima kara kaeruyo! Oingo Boingo Burazāzu! Subete umakuiku! Sō yatte kita daro Oingo Boingo Burazāzu! Kujikecha dame da yo Jinsei to wa sō iu mono da kara! I believe! Oingo Boingo Brothers! I'm waiting! I'm coming home now! Oingo Boingo Brothers! Everything will go great! Hasn't it so far? Oingo Boingo Brothers! Don't get disheartened! 'Cause that's just how life goes! }} {{Lyrics 良い運命がやってくる気がします オドオド生きる人生なんてまっぴらです Yoi unmei ga yattekuru ki ga shimasu Odōdo ikiru jinsei nante mappiradesu I bet good luck would come our way I'm through with living a coward's life }} {{Lyrics ああっ！ Ā~! AAH! }}
 * {{JP|僕はボインゴ
 * Boku wa Boingo
 * I'm Boingo,
 * すべて！すべて！うまくいく!
 * Subete! Subete! Umaku iku!
 * Everything! Everything! Is gonna go great!
 * 印刷に出た予言はもう決して変えることはできない
 * Insatsu ni deta yogen wa mō kesshite kaeru koto wa dekinai
 * Once a prophecy appears, it's set; there's absolutely no way to change it.
 * 信じて良いのかァ!？
 * Shinjite ii no ka?
 * Can I believe it?
 * 俺はホルホース
 * Ore wa Horu Hōsu
 * I'm Hol Horse
 * 僕はボインゴ
 * Boku wa Boingo
 * I'm Boingo,
 * これで これで 上手く行く！(のかぁ？)
 * Kore de kore de umakuiku! (no ka?)
 * That's to say, that's to say, everything'll go our way! (Right?)
 * 印刷に出た予言は 絶対なんです 運命なんです
 * Insatsu ni deta yogen wa Zettai nan desu, unmei nan desu
 * The prophecy written in the book is absolute and is always up to fate!
 * 僕の予知は間違いなかった
 * Boku no yochi wa machigai nakatta
 * My predictions have no doubts
 * 信じてるぜ！
 * Shinjiteru ze!
 * Believe it!
 * もっと人からも愛されるし
 * Motto hito kara mo aisarerushi
 * Everyone would love us
 * ガルル…
 * Garuru...
 * Grrr...

Gallery
Oingo & Boingo=

Trivia

 * According to Director Naokatsu Tsuda, the ending was derived from the need to appease the anime industry's three-episode rule, which requires the first and third episode of a show to be entertaining enough to draw viewers in. After asking Tsuda if the series needed any scene-specific music, Producer Hiroyuki Omori signed off on turning the character song into a full-fletched ending.