Mariah Carey will headline Live at Powderham in Devon on June 27, 2027, closing the four-day festival’s Sunday programme. The event announced Carey as its latest headliner on Nov. 9, adding the singer to a lineup that already includes Shania Twain and Alex Warren.

Carey is scheduled to perform at Powderham Castle as part of her Firefly Summer Festivals Tour, with Sugababes and Eternal listed as special guests. The festival’s own event page confirms the date and lineup; local outlet Exeter Today also reported the announcement.

When Mariah Carey will perform

Live at Powderham runs from June 24 to June 27, 2027. Shania Twain is set for the opening night on Thursday, June 24, while Alex Warren is scheduled for Saturday, June 26. Carey’s Sunday date will close the festival, with other performers announced for that night.

The organizers say Carey’s appearance completes three of the four headline slots for next year’s event, leaving one headliner still to be announced. The festival is staged at Powderham Castle, near Exeter in south Devon.

Ticket sale dates

According to the festival’s official page, venue presale for Carey’s show opens at 9 a.m. on Thursday, Nov. 12, followed by general sale at 9 a.m. on Friday, Nov. 13. Ticket details and any lineup updates are available through the event organizer.

Carey’s booking adds a major international pop act to the Devon festival’s summer schedule. Readers can follow more releases, tours and live-event announcements in The Globuzz’s Music section.

Sources

Live at Powderham official event page; Exeter Today report (Nov. 9, 2026).