Hardwell has joined 4444 OF A KIND, the hardstyle project from Sub Zero Project and D-Block & S-te-Fan, on "RE4SON," out now on Tomorrowland Music.
Anyone who watched Tomorrowland this summer has probably heard it already. The track was written for Tomorrowland 2026 and premiered at the festival, where it turned up in Hardwell's and Sub Zero Project's Mainstage sets and in 4444 OF A KIND's Freedom Stage show on July 17. D-Block & S-te-Fan also jumped into Hardwell and Sub Zero Project's back-to-back in The Great Library to play it live.
The vocal comes from Kacie Jung, a singer the producers found through her TikTok videos. It's Hardwell's first record with D-Block & S-te-Fan, and another link between him and Sub Zero Project, who released "Brace For Impact" with Lil Jon in 2025. For 4444 OF A KIND, it follows "WAITING 4" and "4 THE RAVE."
The release lands the same weekend Hardwell is on the EDC Orlando bill at Tinker Field. It's the latest chapter of a comeback that started with his return at Ultra in 2022 and continued with the album REBELS NEVER DIE.
"RE4SON" is streaming now on all platforms via Tomorrowland Music.
