"Party in the U.S.A." is a popular song by American singer Miley Cyrus. It was released as the lead single from her EP, "The Time of Our Lives", which was only available to Walmart stores at first. The single was released for download on August 11, 2009. The song was written by Dr. Luke, Claude Kelly, and English singer Jessie J. Luke produced the song. According to AllMusic, "Party in the U.S.A." is a pop rock and teen pop song.