'The Fighter' (2010)

Song: "How You Like Me Now?" by The Heavy
Why We Love It: Because after being used in David O. Russell's outstanding boxing-cum-family dramedy, "How You Like Me Now?" reached ubiquity in summer movies ('Horrible Bosses' and 'The Change-Up') as well as at sporting events. It's also the most demonstrative song you can imagine, perfect for the story of Mickey Ward. Listen to this, then strut around your office like a peacock. (Or don't.)