I've never heard The Phenomenal Handclap Band's "Afterglow" on any radio station, but it's on my mind this morning. A commanding guitar part drew me in, and the call-and-response between two vocalists sealed the deal for me. You might not understand every word that's sung, but the tune's energy and chorus should have elicited commercial success in 2012.
This is one alt-rock track fit for widespread play in arenas.