Greatest Hits/Live is a compilation album of greatest hits, live recordings and new tracks by American rock band Heart, released on November 29, 1980, by Epic Records. The album was issued in North America as a double LP. The first disc is a collection of the band's greatest hits, while the second is mostly a live album, although it contains three previously unreleased studio recordings, including a cover of "Tell It Like It Is", released as the first single. The second single released from the album was a live cover of "Unchained Melody".
The songs "Hit Single", "Strange Euphoria", and "Unchained Melody" were omitted from the CD version of the album, due to initial limitations in CD technology. "Unchained Melody" would later resurface on several compilations, while "Hit Single" and "Strange Euphoria" would only become available on the limited three-disc edition of The Essential Heart in 2009. "Strange Euphoria" also appears on the 2012 box set of the same name.
In Europe, the album was released as a single disc with 10 songs. In 1999, Sony Music re-released this version with different artwork under the title Simply the Best, as part of their budget series of the same name.