Lost Song in Memory
 

:( There is a song in my head for which I have forgotten.

The first singer reminds me of moving units- pink redemption(the voice). But kind of happier. The Song is close to indie electro pop..That memory is completed blurr. I tried

Next is a woman, probably blonde, starts singing in a kid singing voice. She sounds like she is counting in french. Which she also repeats a word that sounds like chi chi.
In a video she is in a one piece suit.

I remember in a comment saying she was petite.
So I assume it was the singer.
I later researched Petite singer and it took a year for one to pop out which was petite meller. She has blonde hair, and wears a one peice, and sounds like a kid, and probably speaks french.. but there is no video linking to the song.
Just a thought.

Hi, before starting her solo career, Petite Meller was part of a band called Terry Poison. Perhaps the song you're looking for is in their repertoire. Good luck!