Sekaiichi Happy na Onna no Ko
is the 17th major single by the Japanese idol group Cute, released in Japan on September 7, 2011 on the Zetima label. Background 
The single will be released in three versions: Regular Edition (catalog number EPCE-5816), and Limited Editions A (EPCE-5812/3) and B (EPCE-5814/5) that include a bonus DVD. Limited Edition A DVD will contain the "Sekaiichi Happy na Onna no Ko (Dance Shot Ver.)" music video, and Limited Edition B will have "Sekaiichi Happy na Onna no Ko (Color Box Ver.)". The Single V will be released on September 14. CD single

Track listing

Bonus 
Sealed into all the limited editions
 Event ticket lottery card with a serial number

Single V

Event V

Charts

Sales and certifications

References

External links 
 Thunku's comments on the single
  - Hello! Project
  - Up-Front Works
 
 
 

2011 singles
Japanese-language songs
Cute (Japanese idol group) songs
Songs written by Tsunku
Song recordings produced by Tsunku
Zetima Records singles
2011 songs