When I listened to it, I thought the words were invented, or not complete.
Then I saw the lyrics in the youtube's comment, and I was like ... not what I hear AT ALL !!
They really have a strange way to pronounce words.
The words and sentences feel like they are random and not really related with each others...
• Bonjour aux amis de malheur : hello to friends of misfortune
• nous sommes fous : we are crazy
• C'etait plus fort que moi : it was stronger than me (literrally),
but I feel like there's another meaning, or another way to translate that.
Something more in that form : "I couldn't stand it!" or "I couldn't prevent from doing it, I had to!" and then... he starts dancing like that:
• Pas de chas, pas de deux :
The real word is "
pas de chat" (cat's steps) and refers to Ballet's dances step style.
This is a pas de chat :
And
pas de deux (Step of two) refers to how many dancers are performing a ballet together on scene.