I remember there was a girl on the dance exams(?) lil'bit worrying before started to dance (later everything was OK, everyone was happy) . And also remember that they were dancing on the car roof's. It's old song (about 7-9 y.o. Or less/more) I think, and it's not Geri Halliwell-Raining Man and it's not Irene Cara - What a Feeling
Sorry for my english, this is only the things I can remember from that song video