To add a bit of a challenge to this one I would leave out "boys" in the band names and "white" from Walter White. That was a giveaway for me.

Why capitalise only one group?? That makes it even more obvious that they form a group (as if it weren't easy already). All words should start with a capital here regardless, but why capital character names and not country names which are also proper nouns (and group names too lol)?? This gave me OCD

Music groups should be accepted as an answer

Too easy. Rather unimaginative with no red herrings