US rapper and singer Pitbull tries on a bald cap after receiving a certificate from Guinness World Records for achieving the largest number of people sporting "bald caps" ahead of a concert at BST Hyde Park in London, on July 10, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

US rapper and singer Pitbull (2R) poses for a selfie after receiving a certificate from Guinness World Records for achieving the largest number of people sporting "bald caps" ahead of a concert at BST Hyde Park in London, on July 10, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

US rapper and singer Pitbull reacts backstage as he receives a certificate from Guinness World Records for achieving the largest number of people sporting "bald caps" ahead of a concert at BST Hyde Park in London, on July 10, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

US rapper and singer Pitbull tries on a bald cap after receiving a certificate from Guinness World Records for achieving the largest number of people sporting "bald caps" ahead of a concert at BST Hyde Park in London, on July 10, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

US rapper and singer Pitbull poses after receiving a certificate from Guinness World Records for achieving the largest number of people sporting "bald caps" ahead of a concert at BST Hyde Park in London, on July 10, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

French singer Zaz (C) performs on stage during the 42nd Francofolies music festival in La Rochelle, western France, on July 10, 2026. (Photo by Philippe LOPEZ / AFP via Getty Images)

French singer Zaz (L) performs on stage during the 42nd Francofolies music festival in La Rochelle, western France, on July 10, 2026. (Photo by Philippe LOPEZ / AFP via Getty Images)

French singer Zaz performs on stage during the 42nd Francofolies music festival in La Rochelle, western France, on July 10, 2026. (Photo by Philippe LOPEZ / AFP via Getty Images)