Carrie Underwood shared the first image of her Little Drummer Boy duet with her son Isaiah from her Christmas special, My Gift. Isaiah, aged five, recorded the holiday classic with his mother, and the moment was captured in a special photo. Underwood's Christmas special will premiere on HBO Max this Thursday. The singer described how Isaiah voluntarily wanted to be a part of the album and even dressed up in nice clothes to sing for Jesus. The special will also feature a performance with John Legend.