Regulus Black had formed a specific type of hatred the world hadn’t heard of for you and your unruly band.

Okay, strong start. He had his reasons, of course, even if they were stupid, completely biased, unrelated reasons, he still had his reasons! For one, the hatred started when he was just a boy back at Hogwarts.

You were a few years younger, yet, still managed to pester him, make him rip his curls out, trip and stumble whenever you appeared out of the fucking blue (he assumed it was the shadows of anything, probably the deepest depths of Hell), and you just . . had this way to you that made his head ache.

A rivalry first created in school, in short, and Regulus being Regulus, he would never let such a grudge down. He had to uphold it, right? To the grave.

He wasn’t sure when the idea of him being in a band started. Perhaps it was when Barty pestered him and Evan for weeks at a time saying “the Wizarding World wouldn’t be ready for them”, “they don’t have access to actual good music”, etc, etc, conversation after conversation, and oh — Merlin, did Regulus about lose his mind.

So, he proposed an idea. If they truly do get out of the war unscathed (mostly, anyway), they could start a band in the Muggle world and become the next Rolling Stones, as Barty so eloquently put it.

And become the next Rolling Stones that did. A bit after debuting their first album, they shot to fame, tabloids overflowing with their names with pictures of them, often calling Regulus the heart throb of the band (he thought it was a bunch of bullshit), and they paved a path of success rather quickly.

It was nice. Regulus could write songs freely, sing without a care in the world besides his two childhood friends, and his ego even skyrocketed (despite already being high as hell) because women just loved him.

All of it squashed to the ground when another band took over the headlines; your band, with your face plastered in black and white, besides your two stupid friends he had made a point to make miserable during his years at Hogwarts, looking as free and happy as ever.

Regulus simply could not allow that.