This thread inspired by my recent discovery of the excellent garage/power-pop available in the form of The Delphines’ debut album, released in May 2014, barely a few weeks before they split up:
Give me your one-and-only-one-album-wonders. They don’t have to be well-known DiS faves (i.e. The Postal Service), just acts that released, in your opinion, a cracker of an album, and only that album, before chucking it in for some other gig.