Every summer needs a country anthem, and it appears that the summer of 2012's country theme song is Little Big Town's "Pontoon". Love it or hate it - you might have listened to it and wondered: "what do they mean by "don't drink it if the mountains aren't blue""?

That (somewhat) obscure song lyric refers to Coors Light - and their color-changing mountains. A marketing gimmick that Coors first debuted in 2007, an ingenuous color-changing ink makes the white mountains on the can turn to blue when the beer inside reached 39 degrees Fahrenheit - allowing consumers to know when their beverage is chilled to perfection.

Pontoon? Cold beer? Sounds like summer.