Carrie Underwood and her five-year-old son, Isaiah Fisher, created a heartwarming moment with their duet of the holiday classic Little Drummer Boy. Isaiah kicked off the performance with a sweet and endearing first verse, while Carrie lovingly cheered him on from behind the scenes, making it an even more precious moment.As the second verse began, Carrie joined in, and the duo’s voices harmonized beautifully, culminating in a touching and unforgettable mother-son performance.