Well, yeah, the original song in this scene was "Moon Revenge", one of my all-time top 10 SAILOR MOON songs. And it's hard for me to settle on just 10. Whatever one thinks of SAILOR MOON, I think the music in the original Japanese version (songs and score) is some of the best from any TV anime.
I owned the English soundtrack to Sailor Moon when I was a kid obsessed with Sailor Moon. Years later, when I had my first "real" job in a shitty little web design studio with one full time programmer, the programmer asked me, "Do you remember Sailor Moon?"
I said "Yes, I loved it when I was a kid."
He then informed me that he had the soundtrack, and played it on loop for the rest of the work day, for all to hear.
Wait, what are they fighting? As far as I can tell they're evoking the power of friendship and pop music to keep a crystal corsage from breaking and it defeats them.