A day after the coronation ceremony watched by millions, King Charles III and Queen Camilla let others take the center stage Sunday as they took in a star-studded concert featuring Lionel Richie, Tiwa Savage and others at Windsor Castle.

The newly crowned monarch and his wife appeared to enjoy the show as Richie performed “All Night Long,” at one point getting up on their feet and swaying to the music.

The members of the royal family, including 8-year-old Princess Charlotte and Prince George, 9, waved Union flags along with a crowd of some 20,000 gathered on the castle’s east terrace.