"R.O.C.K. in the U.S.A.", subtitled "A Salute to 60's Rock", is a rock song written and performed by John Mellencamp. It was the third single from his 1985 album Scarecrow and a top-ten hit on both the Billboard Hot 100 and Top Rock Tracks charts, peaking at number 2 and number 6 respectively. In Australia, the single effectively became a double-A side when the B-side "Under the Boardwalk" received significant airplay and both tracks were listed together on the singles chart, reaching #18.