well, I don't listen to any BAD music. Probably the 'easiest listening' music I listen to would be The Shins. If you haven't, I suggest you check them out, they are fantastic.
My buds also give me hell for occasionally listening to The Postal Service and Her Space Holiday.
Zach Braff's apparent obsession with The Shins turned me on to them.
After watching Garden State I spent two days singing 'Only living boy in New York' (S+G)
Appreciate that this runs counter to the point of the thread, but I love 'Lua' by Bright Eyes (Conor Oberst) and several other songs on that album.