What's this song? Match the music video?

I can't remember how the song goes or who wrote it, but I can remember the music video. There's this dude who's walkin' around town and he sees all these people with numbers above their heads. It's supposed to indicate how long the have left to live. Like this one woman is being put into an ambulance and her number runs out. And another who's pregnant so she has two numbers. What song is this?