The Flobots – Handlebars
When this first came out I had been listening to an american streaming radio station at work (also the first place I heard Katy Perry) when they began playing this some every 20 minutes. Within a day I knew the lyrics, and within the week I had the album.
I love how its such a provocative song, without having to be all angry the same way Rage Against the Machine get (much as I like them too). I think the video also does a great job of showing the contrasts of the song.