[Regular]    

Tracklist :  

1. Chou HAPPY SONG (Single Ver.)
2. Chou HAPPY SONG Because happiness - Berryz Koubou
3. Shiawase no Tochuu - ℃-ute
4. Chou HAPPY SONG (Single Ver.) (Instrumental)
5. Chou HAPPY SONG (Single Ver. Berryz Koubou vo. Iri) (Instrumental)
6. Chou HAPPY SONG (Single Ver. ℃-ute vo. Iri) (Instrumental)    

[Limited A]    

Tracklist :  

Voir Regular  

DVD :  

1. Chou HAPPY SONG (Mix Ver.)

[Limited B]  

Tracklist :  

Voir Regular  

DVD :  

1. Chou HAPPY SONG (Double Screen Ver.)

[Limited C]    

Tracklist :  

1. Chou HAPPY SONG (Single Ver.)
2. Chou HAPPY SONG
3. Because happiness - Berryz Koubou
4. Shiawase no Tochuu - Berryz Koubou
5. Chou HAPPY SONG (Single Ver.) (Instrumental)
6. Chou HAPPY SONG (Single Ver. Berryz Koubou vo. Iri) (Instrumental)
7. Chou HAPPY SONG (Single Ver. ℃-ute vo. Iri) (Instrumental)    

[Limited D]    

Tracklist :  

1. Chou HAPPY SONG (Single Ver.)
2. Chou HAPPY SONG
3. Shiawase no Tochuu - ℃-ute
4. Because happiness - ℃-ute
5. Chou HAPPY SONG (Single Ver.) (Instrumental)
6. Chou HAPPY SONG (Single Ver. Berryz Koubou vo. Iri) (Instrumental)
7. Chou HAPPY SONG (Single Ver. ℃-ute vo. Iri) (Instrumental)    

[Single V]    

1. Chou HAPPY SONG (MV)
2. Chou HAPPY SONG (Close-up BeriKyuu Ver.)
3. Making of 

[Event V]    

1. Chou HAPPY SONG (Shimizu Saki Solo Ver.)
2. Chou HAPPY SONG (Yajima Maimi Solo Ver.)
3. Chou HAPPY SONG (Tsugunaga Momoko Solo Ver.)
4. Chou HAPPY SONG (Tokunaga Chinami Solo Ver.)
5. Chou HAPPY SONG (Sudo Maasa Solo Ver.)
6. Chou HAPPY SONG (Natsuyaki Miyabi Solo Ver.)
7. Chou HAPPY SONG (Kumai Yurina Solo Ver.)
8. Chou HAPPY SONG (Nakajima Saki Solo Ver.)
9. Chou HAPPY SONG (Sugaya Risako Solo Ver.)
10. Chou HAPPY SONG (Suzuki Airi Solo Ver.)
11. Chou HAPPY SONG (Okai Chisato Solo Ver.)
12. Chou HAPPY SONG (Hagiwara Mai Solo Ver.)    

Infos :  

• 2ème single de l'unit BeriKyuu (Berryz Kobo x °C-ute)
• Ce single est composé de 2 chansons des 2 groupes
• MV