"Gradation Vol.2" is the seventh digital single by ELO. It was released on May 15, 2018, and is the second part of his four-part "Gradation" single project. Track list "0809" (feat. Boi.B & goodkiddaily) - 3:06 "Don't You Worry" (feat. Kirin) - 2:51 This article is a stub. You can help Kpop Wiki by expanding it. Retrieved from "https://kpop.fandom.com/wiki/Gradation_Vol.2?oldid=121226" Categories: Single article stubs ELO 2018 digital singles Digital singles Community content is available under CC-BY-SA unless otherwise noted.