Weezer - "Say It Ain't So"
Best used: On a morning after having done something you deeply regret.
Be it sex with your ex, ordering tequila shots for everyone at the bar, spending forty-five minutes arguing with a stranger about politics, or deciding that yes, a $60 cab was a better idea than just putting up with the night bus, this song is a perfect reintroduction to the world after a night of regret and/or shame. First of all, it echoes your feelings; Rivers Cuomo screams, "Say it ain't so," so that you don't have to. Secondly, that gentle, carefree guitar line of the verse will assist in keeping you calm about however you embarrassed yourself. And finally, early Weezer is underplayed in 2014.