And they are Jumbo Jacks.
Here’s her Wikipedia page.
And the full video, with sound, if you care. It looks like a radio program. (??!!)
I don’t know anything about her wacky French humor in general. I suppose it involves wearing a beret, impersonating Edith Piaf, and smoking unfiltered Gauloises. But exposing her giant chest on radio is comedy gold, certainly funner than radio mimes, and possibly even funnier than Ovaltine! That’s gold, Jerry! Gold!