Songs You Know by Heart: Jimmy Buffett's Greatest Hit(s) is the 18th album and the first greatest hits compilation by American singer-songwriter Jimmy Buffett. It was released in 1985. The parenthetical "s" in the subtitle alludes to the status at the time of "Margaritaville" as Buffett's single large chart hit. Despite its 1985 release date, the album only includes songs from 1973 to 1979. Wikipedia