On October 3, 2008, Ito left a message on her blog to say that she had recorded a new song with an up-beat tempo.

The point is to go out with your girlfriends and have a great time, and if you find someone, then (you hit) two birds with one stone.

"[3] "Koi wa Groovy x2" was used to promote Gap Japan's 2008 Holiday Collection Winter Neutrals which featured Canadian Supermodel Groovy M.[4] On October 10, Ito posted a message on her blog about the music video for the promotion of the single.

She stated the music video's theme was inspired by Canadian model Groovy M, and the idea of a fashion show.

An all English version of the song entitled "groovy×2" was released December 10, 2008, under an alter-ego named Christine Ito, her "sister".