french holiday song

I was on holiday this year on a french campsite and the kids club was dancing around the pool everyday to different songs.
One of them was Vanessa Amorosi - absolutely everybody, but there was another one and they danced to it by waving their arms in the air then down near the floor. My french isn't good so i will write out what the lyrics sounded like phoenetically : 'an sin a ola mila ohhh, a doonaly doo nee'

really hope you can help me out?

My first language is french, and I tried saying what you wrote out loud and all and I just can't grasp the words at all so I can't help, sorry