HEARTSTEEL is a virtual boy group developed by Riot Games, consisting of six League of Legends champions: Ezreal (performed by EXO member BAEKHYUN), Sett (performed by ØZI), K'Sante (performed by Tobi Lou), Kayn (performed by Cal Scruby), Yone and Aphelios. They released their debut single "PARANOIA" on October 23, 2023.