Just one!? Sheesh, tough question...
If I had to pick one, though:
Japandroids - The House That Heaven Built
Because if this song doesn't make you want to get drunk, fight someone, get a tattoo or at least scream your lungs out you might be dead or comatose. I can't say much for the level of skill employed in writing and performing this song, but sometimes just having energy and a steady supply of throat lozenges is enough.
