Instagram/Justin Bieber & Billie Ei Music Justin Bieber's 2026 Coachella return featured classic hits, a special Billie Eilish onstage moment, and a surprise from wife Hailey. April 20, 2026 AceShowbiz - Justin Bieber made a highly anticipated return to the Coachella Valley Music and Arts Festival main stage on Saturday, April 18, 2026, performing a second set after receiving mixed reactions from fans following his opening weekend appearance.