DESCRIPTION:
Song: Koi Kuru
Singer: Kuroki Marina
Anime: Onegai My Melody ~Kuru Kuru Shuffle!~ (Please My Melody ~Spin Around and Shuffle!~)
Lyrics: Hiroshi Yamada
Composed by: Cher Watanabe
English Title : Love is Coming

I'm surprised to not see this floating around. This is the second opening for the Please My Melody series and was used for the second season.

Fan Art Image (thought this adorable picture was most fitting for the season): http://www.zerochan.net/638290

All credit for the English Titles go to Eggplant Fansubs