I first heard I.O.I.O at a dance party on the fourth floor of the old Stollworks factory in Cologne, Germany. A room of maybe 200 Germans lifted their arms and swayed to the poppy tune with exuberance. The next day, I heard the song in a downtown Cologne club. Again, the group swayed to the lightness of this Europop hit. I heard the song several more times during my stay. On the plane ride back to the States I couldn't get the catchy chorus out of my mind. This song is nothing more than fun and it's bound to brighten any day ... or weekend night.