Everyone has liked some artists a lot in the past but stopped listening to them for various reasons (change of music taste, change of style by the artist, tired of listening to old songs etc.). Now there is a new song from them that you like a lot, what is it? Maybe a short comment on why and optionally how many years passed since the last favorite song from them (makes you realize how time flies). The song does not really have to be that new, just new to you in the way that it came out after the songs you used to listen to.

For me it is the following at the moment:
Ayumi Hamasaki - Warning: Finally a strong voiced and energetic song again, missed those. I don't remember any other song since the Rock'n'Roll Circus album that I liked like this one. 5 years

BoA - Shout it Out: Its been years since I have liked a new BoA song, her music style has changed to a slower style but this song is different, the last song I liked before this was Hurricane Venus. 5 years

Hmmm right now for me it would be

Savant - Orphan: I stopped listening to Savant since highschool as I started to lose some interest in EDM and Savant himself was moving to more "experimental" stuff. Orphan is off of his latest record and it's something new and catchy I can enjoy. (3 years)

Aaand I think that's all I can come up with right now. When I stop listening to an artist, I usually leave them in the dust for good. The last I heard of Ayu was on Next Level haha.

I never completely abandon any artist. Even if it is for "nostalgia" reasons it is nice to listen to some really old songs you liked in the past, it can be a lot of fun especially if you have good memories attached to those songs. I usually listen to a song and I remember what I used to do back then.

For me I think it would be Nightwish. 

I love Nightwish, and their style is very unique. But ever since Anette was fired and the bass player Marco called it a day, they just sound so generic now. It's almost as if they have killed the thing that made them unique. The new singer is awful and they're now trying too hard to sound like they used to. Dark Passion Play was the last best album they made. 

Now that Anette has teamed up with Jani, The Dark Element is the new Nightwish. And thus my new favourite band.