Yeah, Idlewild, from way back when they first started.
Now, I just realised something about this song.
Idlewild are a Scots band.
In Scots "message" means shopping or errands, as in
"I'm just off to Tesco to pick up my messages"
"Did you get your messages?"
(it's still commonly used, by the way)
So, when Idlewild sing "I am a message" along with the other lyric from the song about "selling your soul", they're singing about the commodification of music and giving out to "The Man", no?
(shame they did sell out eventually - their souls died along with it possibly)