Cyrus has stated "Party in the U.S.A." is not a reflection of her musically, as she preferred songs with more of an edge.
The song was written and produced by Dr. Luke, with additional songwriting provided by Jessie J and Claude Kelly.
"Party in the U.S.A." was originally intended for Jessie J, but after deciding it was not edgy enough for her, they passed it to Cyrus and adjusted the lyrics to fit her persona.
Not completely identifying with "Party in the U.S.A.", Cyrus chose it for The Time of Our Lives partially due to a need for tracks.
This is one of four collaborations between Cyrus and Dr. Luke, with EP title track "The Time of Our Lives", will.i.am's "Fall Down" and "Wrecking Ball" following in 2013.