If you're like me and you can't choose a "favorite song" because of your musical commitment issues, just look at what your most played jam on iTunes or Spotify is and use that. Add the song's best youtube video cover in the comments!
43 YouTube covers of We Are Young, one video, let's set the world on fire, etc. Fun.
"Africa" performed by Mike Massé and Jeff Hall on 7/17/10 at the Pie Pizzeria in South Jordan, Utah.