Words & Music: John Mellencamp's Greatest Hits is a greatest hits album by American rock and roll artist John Mellencamp. This two-disc set was released October 19, 2004 on the Island and UTV Records labels. It is a retrospective of Mellencamp's career at the time of its release, and features at least one song from each of his studio albums released between 1978's A Biography and 2003's Trouble No More. Two songs, "Walk Tall" and "Thank You", were recorded exclusively for this album. No songs from Mellencamp's 1976 debut album Chestnut Street Incident or 1977's The Kid Inside are represented. Also omitted is Mellencamp's cover of "Without Expression", which was released on his previous compilation album The Best That I Could Do 1978–1988.

"Lonely Ol' Night" is a rock song written and performed by singer-songwriter John Mellencamp. It appeared on his 1985 album Scarecrow and was released as the album's lead single, peaking at number 6 on the Billboard Hot 100. It also reached number 1 on the Top Rock Tracks chart, staying at the top spot for five weeks.