This is the song that inspired me to bring Mephisto into the role-play. Kamelot is also the band jasmijn mentions. (Their albums "Epica" and "The Black Halo" revolving around Ariel and Mephisto's tale)
I was thinking if this was a series/web-series, should this be the theme song? I mean, the song is called "Give It Up", which means the girls telling the "antagonist" to give up.