I think a lot of ‘classic’ music is still really popular with Humanity in the Mass Effect world. All those bands and artists from the 60s-90s are kind of eternal and just because humans have finally managed to get a real foot in the Galaxy doesn’t mean they’re gonna leave all that important musical history behind them.
I can just picture Joker sitting in the Normandy, piloting away, and humming the first few chords of Bohemian Rhapsody under his breath because it’s considered Earth’s unofficial anthem or something because fuck yeah QUEEN IS ETERNAL! And he’s deliberately broadcasting through the entire ship because they’ve just been through a serious shitstorm and everyone feels like crap.
And then he utters the first lines.
And slowly the humans on the crew start to hum and sing along because fuck you it’s Bohemian Rhapsody and penalties for not singing include latrine duty and laundry – orders courtesy of Shepard.
And then it’s this ridiculous sing along, and the port and starboard sides have their own sections they have to sing.
Port: “But I’m just a poor boy and nobody loves me!”
Starboard: “He’s just a poor boy from a poor family!”Shepard totally gets into it, and they’re surprisingly good because it makes up for their dancing abilities and driving skills or whatever.
And Joker closes it off at the very end, and there’s a brief flutter of applause before everyone goes back to their jobs all serious like, and they all feel a bit better after joining in a galactic flash mob sing along.
And the aliens on board have no fucking clue just what went down, but they all agree that the song was pretty darn epic and endeavour to learn the lines for next time because it’s fucking Queen in a spaceship and I’m so sorry for my stupid headcanons but I needed to share.