Rev Theory (formerly known as Revelation Theory) is an American hard rock band formed in 2002 in North Andover, Massachusetts. The band has released three studio albums- Truth Is Currency (2005), Light It Up (2008) and Justice (2011)- as well as three EPs- Revelation Theory EP (2004), Acoustic Live from the Gibson Lounge (2009) and ''Take 'Em Out (2012). The song "Voices" is currently being used for World Wrestling Entertainment (WWE) wrestler Randy Orton. The song "Hell Yeah" was the opening theme song for the popular Spike show Blue Mountain State''.