Olivia Newton-John's Greatest Hits (1977) was the first compilation album released by Olivia Newton-John in the United States. (In some other regions, Newton-John released a 1974 compilation, First Impressions. This album was therefore marketed instead as Greatest Hits Vol. 2 and featured a different track listing.) The album collected all of Newton-John's American Top 40 singles released between 1971 and 1977. "Changes" was the only track not released as a single, but it was one of Newton-John's first self-written songs that she recorded. The album was Newton-John's first platinum certification peaking No. 13 Pop and No. 7 Country. It ended up being certified double Platinum in the US and Platinum in the UK and Canada, and also Gold in Hong Kong.