California was released by American rock band Phantom Planet on their 2002 album The Guest and became widely known as the theme song for the television drama The O.C., which premiered in 2003. Its association with the show's sun-soaked opening titles helped turn the chorus into shorthand for West Coast life in popular culture. The song later found a second life in travel videos, reaction edits and nostalgic compilations online, where its short, upbeat hook works as an instant signal for California, summer and new beginnings.