Don't Be Happy... Just Worry is the second extended play (EP) by British rock band The Wildhearts. Released on 23 November 1992 by East West and Bronze Records, it consists of remixed versions of all four tracks from the band's first EP Mondo Akimbo a-Go-Go alongside four new tracks recorded at Rockfield Studios in Rockfield, Wales with producer Robert Musso. The EP was the band's first release to chart, reaching number 91 on the UK Albums Chart.

After touring in promotion of their debut EP Mondo Akimbo a-Go-Go, the Wildhearts recorded four new tracks at Rockfield Studios in Rockfield, Monmouthshire, Wales in the summer of 1992.^[1] For the sessions, the band worked with American producer Robert Musso and mixing engineer Terry Date.^[2] In addition to the new songs, Don't Be Happy... Just Worry also features all four tracks from Mondo Akimbo a-Go-Go, newly remixed by Date and dubbed the "Anti-Dance Mixes".^[1] The EP was released on 23 November 1992 by East West and Bronze Records, on double CD and double 12" vinyl.^[3] A single-disc mini album version was issued on 25 April 1994.^[4]

The Wildhearts

• Ginger Wildheart – lead vocals, guitar, production
• C. J. Wildheart – guitar, backing vocals, production
• Danny McCormack – bass, production
• Bam Ross – drums, production

Additional personnel

• Dan Priest – production and engineering on tracks 1–4
• Doug Cook – engineering on tracks 1–4
• Robert Musso – production on tracks 5–8
• Paul Cobbold – engineering on tracks 5–8
• Terry Date – mixing on tracks 5–8, remix on tracks 1–4