American Authors (formerly known as “the blue pages”) is an American rock band based in New York City currently signed to Island Records. It currently consists of lead vocalist and guitarist Zac Barnett, bassist Dave Rublin, and drummer Matt Sanchez. Former member includes lead guitarist and banjoist James Adam Shelley. They are best known for their hit singles "Believer" and "Best Day of My Life" from their debut album Oh, What a Life, as well as their top 20 hit, "Go Big or Go Home", from their second album, What We Live For.