"100 Proof" is a song recorded by American country artist Kellie Pickler.
It was written by Leslie Satcher and James T. Slater, the same writers that wrote the album's first single "Tough".
Written by James T. Slater and Leslie Satcher (who also wrote the first single, "Tough"), the title makes an analogy between love and level of alcohol, as if love is addictive.
As the song continues, it narrates the awful things that the parts of the bad relationship talk to Pickler and the man she loves.
Prior to the official add date, the single was sent to secondary radio stations to gain momentum.