Jagged Stone

British rock star from the "Guitar Villain" episode (28 Feb. 2016) of animated television series [ https://www.imdb.com/title/tt5566726/reference Miraculous: Tales of Ladybug & Cat Noir. He's supposed to do a duet with DJ Mr. XY, but Mr. XY dissed him in an interview.

Infuriated, Stone becomes vulnerable to supervillain Hawk Moth's "akuma," butterflies infused with negative energy that transform ordinary folks into supervillains. Hawk Moth does this every episode.

So Stone turns into unimaginatively named supervillain Guitar Villain and tries to kill Mr. XY. Heroes Ladybug and Cat Noir save Mr. XY and turn Guitar Villan back into Jagged Stone.

Once recovered, Moth's victims never recall their time as a supervillain.

Ladybug, in her secret identity as Marinette, designs the cover of Stone's new album, Rock Giant.

Stone pops up briefly in another episode as a celebrity chef show judge, and is mentioned in a third episode.