Cha-La Head-Cha-La

Hironobu Kageyama received the offer to record the opening theme song to Dragon Ball Z from the director of Columbia Records.[2] With his background in a rock band, Kageyama said this director had previously revitalized his career by choosing him to sing the theme to Dengeki Sentai Changeman when he wanted a rock singer who could sing the upbeat theme songs that were being written for anime in increasing number in the 1980s. This director told Kageyama he would be singing the theme to Dragon Ball Z and wanted him involved from the earliest stage.[2] Kageyama had been reading the Dragon Ball manga in Weekly Shōnen Jump for quite some time and was shocked when he was offered the job.[3]

Kageyama and his band made a demo of the song that the singer described as American rock in the vein of Bon Jovi.[2] But he was astonished when he heard Kenji Yamamoto's final arrangement, which was very different, and was initially unsure if it was even good.[2] According to Kageyama, Yamamoto loved club music and incorporated elements of it in the song.[2] He described the bass as bouncy and funky, and the guitar as being played more like a keyboard.[4] Kageyama said, "At the time, mainstream rock music did not have that kind of sound, and there were no arrangers who could have made arrangements like that. I think the sound as well as the lyrics were quite innovative."[4] However, he also said that there are elements familiar to the British rock he grew up listening to everywhere in the song.[2]

Yukinojo Mori received the request to write the lyrics to the theme song from Columbia. He later speculated that they had probably heard the themes he had written for the Kinnikuman anime and knew his methods and approach to writing anime themes.[5] Because of the music's complex chords and structures that can not be played with a single guitar, Mori sensed an atmosphere of progressive rock, which he is a fan of.[5] The lyrics that gave the song its title of "Cha-La Head-Cha-La" are a combination of different Japanese phrases. The first "Cha-La" comes from "chara ni suru" (チャラにする) and means "to pretend nothing happened", while "Head-Cha-La" comes from "hetchara" (ヘッチャラ), which means "It's OK."[5] Mori explained, "A lot of things might have happened in my life up until this point, but once I reset myself it all becomes OK and I'm ready to give things another shot. I tried to write lyrics that expressed that feeling while still rhyming. A lot of people say that emptying your head of thoughts makes you empty inside, but actually it's the opposite. It's a sort of punk attitude that means you can shake it off and empty your mind. It also means that no matter what happens, you're undefeatable.", "That's why we decided to write it as 'HEAD-CHA-LA'".[5] When he first saw the lyrics, Kageyama initially thought it was a joke. But having known Mori since he was a teenager, the singer realized it was just the type of "crazy" thing he would do.[2] He also said that, while most lyricists of the time prioritized showing off their own style through the lyrics, Mori prioritized the singer's enjoyment, "so his way of thinking was undoubtedly rock 'n roll. The thought that doing things that other people are already doing is dull and boring is pretty central to his character as a creator."[2]

The single's B-side is "Detekoi Tobikiri Zenkai Power!", which is the first ending theme of Dragon Ball Z. Its composer Takeshi Ike had worked on the theme songs of the original Dragon Ball anime. Ike said he wanted to capture Dragon Ball's sense of mystery in the song and exude a "mystical kind of atmosphere".[6] He also explained, "The opening [theme song] is usually flashy and dramatic, but you have more freedom in what the ending sounds like, so I thought it'd be fun if we made the song like something out of an amusement park."[6] The track has an oriental feel that was combined with elements from pop, reggae, and a bunch of other different styles.[6] The lyrics were written by Naruhisa Arakawa, who was a screenwriter on the Dragon Ball anime, based on scat vocals that were added during the music's composition period.[6] They worked with female singer Manna on how to best time the lyrics to draw out their uniqueness, added choir parts to give the words more impact, and used shouts and other elements to add more variety and color.[6]

After Manna finished recording her vocals, Ike continued to add elements to "turn up the sense of wonder". Wanting a kind of chant that sounded like a magic spell at the beginning of the song, he added backmasked vocals inspired by the technique used to voice the aliens in the 1977 film Star Wars.[6] "First I needed some words to start with, so I decided to record the names of the producers and staff who worked on the song. I recorded it on a 6mm tape and then just flipped it upside down and played it backwards through a 48-channel digital mixer, then pitched it up and added some effects. What I ended up with sounded like some kind of hypnotic, trance-like incantation."[6]

"Hero ~Kibō no Uta~ / Cha-La Head-Cha-La" (HERO ~希望の歌~ / CHA-LA-HEAD-CHA-LA, "Hero -Song of Hope- / Cha-La Head-Cha-La") is the twentieth single by Japanese rock band Flow, released on March 20, 2013, as a double A-side.[25] Both songs were created for use in the 2013 theatrical film Dragon Ball Z: Battle of Gods and included on Flow's eighth album Flow the Max!!!. "Hero ~Kibō no Uta~" is used as an insert song in the film, while the cover of "Cha-La Head-Cha-La" is used as its theme song.[25] English-language versions of both songs were used in international releases of the film, with the English version of "Cha-La Head-Cha-La" included on the single as one of four B-sides. The other three are "Rising Dragon -DJ Dragon Remix-", a remix of a song from Flow's 2004 single "Go", and instrumental versions of the two A-sides.

Two versions of the single were released, each with different cover art; the standard edition features the members of the band drawn in a Dragon Ball-style, while the first press edition features characters from the film. When the two versions are lined up alongside the film's original soundtrack, the artwork from all three connect to form a single large image.[26] The first press edition includes a special card for the card video game Dragon Ball Heroes.[26]

"Hero ~Kibō no Uta~ / Cha-La Head-Cha-La" reached #24 on the Oricon Singles Chart and charted for five weeks.[27] Flow's version of "Cha-La Head-Cha-La" went on to be used in the video games Dragon Ball Z: Battle of Z and Dragon Ball Xenoverse, as well as part of the Anisong & BGM Music Pack in Dragon Ball FighterZ, Dragon Ball Xenoverse 2, and Super Dragon Ball Heroes: World Mission.

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