I have mostly ignored my last.fm and just let it run for the last 17 years without much deviation from what I have always listened to... in 7 months BTS not only started appearing on my scrobbles, but absolutely annihilated my top artists. oops? sharphinttear’s Music Profile | Last.fm
Damn. I actually listened to all 3 of the top 3 this week! Pretty sure that's never happened. Didn't listed to any of the other 47, though.
I listened to most of them but mostly on playlists. Kendrick, State Champs and Arcade Fire as full albums
If you're looking to get a better idea of time listened to per artist as opposed to scrobbles check out timewhizzs. It's straightforward and helps give a better picture of things if you listen to bands with longer tracks.