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 Chart (2011) Peakposition Oricon Daily Singles Chart 5 Oricon Weekly Singles Chart 6 Oricon Monthly Singles Chart 24 Billboard Japan Hot 100 27 Billboard Japan Hot Singles Sales 7 Billboard Japan Adult Contemporary Airplay 74

Sales and certifications Firstweek Total Oricon sales 16,638 19,830

References

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