Here's some of the songs with lyrics I listen to while working on Butterflies and Moths. It's not that many since I generally tend to listen to music without lyrics to be able to focus completely on drawing. (Movie soundtracks, Game soundtracks etc)
A Perfect Circle - A Stranger
Zero 7 - Home
Massive Attack - Dissolved Girl <-- <3 <3
IAMX - Naked but Safe
Coldplay - Everything's not Lost
Our Lady Peace - Car Crash
And of course Youtube doesn't have my lovely Bjork - Hidden Place. They only have awful remixes. Not the original song. Bjork is very... Strange. Gets me in the mood though ;D Same with Sigur Ros and Mum.
Finally. Alright. This one -doesn't- have any lyrics. But it's one of my favourites.
Lamb - Angelica