:stoned:
As everyone else has said, it is impossible to pick just ONE song. I don't know if this song is my favorite but I do know that if you are super stoned and listen to this song it will be great for you!

Radiohead-Everything In Its Right Place

While smoking Bone Thugz N Harmony-Weed Song is a chill beat..

ahh this is too hard.. I could go on for days