19-year-old British singer-songwriter phenom SIENNA SPIRO makes her television debut on The Late Show with this performance of "MAYBE.," from her debut EP, 'SINK NOW, SWIM LATER.' Catch her on tour this summer with Teddy Swims, tickets and more information are available at https://drop.cobrand.com/d/siennaspiro/ukeutour. #Colbert #SiennaSpiro #Maybe #Music #LiveMusic #MusicDiscovery #OnTour #EdSullivanTheater #StephenColbert #TheLateShow