OK I can't think of anything else and I need to go to bed. Going with
MUSICAL IRONY regardless, sorry to those that hate it, but on the bright side I bet many players won't judge too harshly this round. And to reiterate the definition:
Musical irony for the purposes of this would be any song with lyrical content seemingly contradictory of the music, e.g. an epic song about something trivial, a sad song that sounds happy (bittersweetness would broadly probably work), etc.
Other examples to maybe make things easier are
*Serious-sounding songs that are actually absurd
*Sci-fi-themed songs that sound primitive
*Ugly-sounding songs describing something beautiful
*Slow songs about life moving too quickly
Etcetc, if you can think of any band you enjoy and think of a song they have that makes you think "Huh, what a weird subject/song for them", then it might qualify, really shouldn't be that hard of a theme imo
EDIT: But I will add a caveat that ironic covers aren't allowed (e.g. death metal Britney Spears), and I'm not looking for joke songs like those from Anal Cunt's Tunnel of Love, since the irony is in the band performing and not internal to the song.