Electric Light Orchestra/YMMV

Awesome Music: "Fire on High," alternating between symphonic bombast and acoustic rocking-out. Would also make good boss music for a video game.
Ear Worm: Several. "Mr. Blue Sky" is perhaps the best example.
Fanon Discontinuity: Progressive Rock fans tend not to care for their later, poppier work, as evidenced by the hate for Discovery noted below.
Germans Love David Hasselhoff: Reportedly, Twilight became an Otaku anthem after use in the famous DAICON IV opening.
Face of the Band: Jeff Lynne.
Hype Backlash: One of the worst victims of this trope. While they were extremely popular during their heyday, people began putting them down as "generic synthpop drivel" (which, to be fair, much of their later career was) after their decline. This trend seems to be reversing itself now, though (see Vindicated by History below).
More Popular Spinoff: The band was originally started as a side project of The Move. Then that band broke up and Roy Wood left for a solo career after their first album. Then they got popular.
Nightmare Fuel: Three Words: "Fire On High".
- See also, the below Last-Note Nightmare example from The Diary of Horace Wimp.
- The robotic vocoded voice that says "Please turn me over" at the end of Mr. Blue Sky.
They Changed It, Now It Sucks: Many fans weren't happy with Discovery, claiming ELO sold out to disco.
Vindicated by History: "Mr. Blue Sky" was not one of the band's biggest hits upon initial release, peaking at #6 in the UK during a period when most of the band's singles went Top 10 anyway, and only managed #37 in the US. However, since being featured in dozens of commercials and movie trailers since the mid-90's, its easily become their most recognizable song and its garnered critical attention from - of all people - indie rock fans.