He wrote tunes for some of the ye-ye movement of female singers in France with a unique and fresh sound. The lyrics to his tunes were pretty interesting too. But he played a real dirty trick on one of his top acts, France Gall with the song "Les Sucettes", where the poor innocent teen girl didn't realize she was singing about giving blow jobs and only found out later (thinking she was singing about lollipops).

Four hit tunes Gainsbourg wrote for France Gall, including the cruel "Les Sucettes":

barely sixteen when she recorded Laisse Tomber Les Filles in the summer of 1964 (just weeks after The Beatles invaded America - the sexual revolution and the pill were still in the future back in those days). Gainsbourg called her his Lolita but it was his fantasy, not who she really was. France Gall's entire image was wrapped up in being a fresh cutie pie innocent girl next door type, with an untrained voice that sounded like a little girl, or like your daughter singing in the shower.

Another fresh, unique hit written for her by Gainsbourg: