"Sometimes I Just Don't Know" by Squeaky, What What, and Roadwork.

Look, hey, look, see

Now I don't know what's goin' on, but I'm trying to figure it out

I'm just holdin on (?) to keep up my head up high

And if I do that, then I'mma make it out alright

And If I don't, well I'mma just try to stay tonight

And I can't, then I'mma just get down on my knees

And pray that he can take care of me and make everything all gravy

And if he can't, well then I guess it's just

Something that I gotta do to keep me tellin' (?) me to you,

And if you don't understand then I'mma say it again

"Sometimes I just don't know..."

More Reddit comments: http://reddit.com/r/videos/comments/...     

"I've been a musician for most of my life. Every once in a very great while, something like this will happen. Very rarely is it caught on tape, but you're right - it's one of the most uplifting things in the world, to walk into a room, or up to a random guy, and suddenly be making a magical sound that only you two guys can make. No other 3 people in the world would have made it sound like these guys did. That's the magic and the beauty of it. Usually, moments like these are just lost to the universe. They're done once and then they're gone. These guys are lucky that this will live forever in this video - that's what you hope for, but usually when you set out to record magical moments before they happen, they don't happen. So these guys are lucky. We're all lucky."

I have the same feeling -- this video has a spontaneous quality that seems rare. 

"Usually moments like this are just lost to the universe."

Watched it again. Even better the second time.

hot damn! that was awesome! what joy!!

Yes, it's a good reminder of the random joy there is in our world. I love that.