Don't worry...about a thing...
'cuz every little thing gonna be alright.
Sure. Bob Marley was right about a lot of things, but when it comes to that, he was sadly mistaken. Things don't always turn out alright, even when you do worry. You can't just roll with the punches all the time...sooner or later you'll get slap-happy and forget why you're doing this in the first place, and that's the last thing we need: aimlessness.