Conan O’Brien, 63, has spent decades making his gravity-defying red pompadour part of his trademark look. When the comedian appeared on the latest episode of Conan O’Brien Needs a Friend sporting a drastically different hairstyle,

Two days later, on July 22, Conan dropped an extra 10-minute video, shot on the same day as the July 20 episode, explaining that his slicked-back look was the result of a painful sunburn he had sustai...