Bad Luck has been played on NTS shows including Shamos , with Index first played on 26 September 2018.

Bad Luck is the name of more than one artist:

1) An emo pop punk band from Daytona Beach, FL who now reside in Brooklyn, NY. They stylize their name as Bad Luck. https://badluckdudesny.bandcamp.com/

2) An indie rock band from Glasgow Scotland. https://badluck1987.bandcamp.com/

3) An avant garde jazz group from Seattle, WA. Musicians are Neil Welch, tenor saxophone, live electronics Chris Icasiano, drums http://store.badluckband.net/album/three

It may also be an incorrect artist tag for a fictional band from the anime Gravitation, by Maki Murakami. Vocals for the band in the anime are done by Kotani Kinya, except for the song "Bird", which is done by Tomokazu Seki.