A "happy day" it always was
To mark the launch of the Citroën C4, BETC Paris invites you on a journey through time.

In a recent TV commercial, the new Citroën C4 drives through settings from decades past - and whenever the car appears, it catches the eyes of everyone present, who then start singing "Oh happy day." An entertaining journey through time, realized by BETC Paris for the French car manufacturer.
