Ok this is the key to know the song:
Sounds very much like :
Olai olai olai la la lai Dance , Olai olai olai la la lai Dance (twice or more repeated)
- Women singing , easy happy style
- Mid tempo
- guess it's around 70's / 80's
- Think it's european song
- think it's a well known song of itäs era
Lets crack it again.