<human>: Give me the gist of the text in a nutshell

I saw it sometime in the past 1-1.5 years, possibly from stumbleupon, though I tried to look at my favorites and could not find it. I remember is that the song had a guy singing to acoustic guitar, and maybe piano. The second, and probably more important piece of information I can remember is the video. It was basically a bunch of little figures of people in front of what looked like a stage, with (I think) a miniature carnival around them. There was one miniature in a wheelchair, and I think the video had something to do with the passing of time. Also, the video wasn't made by the artist of the song. Anyway, thanks for any help you have, this is really bugging me. 

Thanks for your help!

(I'm going to be gone on a car ride soon, but I'll check back when I arrive at internets).
<bot>: Song played to a video with little figures of people in it and a tiny carnival in the background. Help me find it.