TEXT: UNSPECIFIED, UNDATED - APRIL 24:  (NO SALES) In this undated handout supplied by Kensington Palace, cellist Sheku Kanneh-Mason, who will be performing at the wedding of Prince Harry and Meghan Markle poses for a photograph. The couple will marry in St. George's Chapel at Windsor Castle on May 19. (Photo by Lars Borges/Kensington Palace via Getty Images)