Instagram/BTS & Matthew McConaughey Music BTS reveals which A-list celebrities left them starstruck, including a memorable backstage meeting with Matthew McConaughey. April 2, 2026 AceShowbiz - The global sensation BTS recently opened up about which celebrities have left them starstruck during their career. On the Elvis Duran Show, members of BTS revealed some memorable encounters with famous personalities who attended their concerts and backstage events.