This video is of Alizée and Claire Keim singing Le pouvoir des fleurs (The Power of Flowers). It is of one of those "filler" routines where one or two celebrities would come out and do a song or a comedy sketch to fill in the time while the rest of them were getting ready for one of the main numbers.
Here is a YouTube link to the video, but I am also including a link to a better one that I have in my Google drive.
https://drive.google.com/file/d/1vMp...ew?usp=sharing