According to Grok, the video in the post appears to be a live performance by the Trans-Siberian Orchestra of their track "Christmas Eve/Sarajevo 12/24," which is a rock-orchestral medley prominently featuring and based on "Carol of the Bells" (a traditional Ukrainian carol composed by Mykola Leontovych). Other reactions to the post also identify it as a version of "Carol of the Bells," such as the one by Tommee Profitt.
What is the name of this song?
According to Grok, the video in the post appears to be a live performance by the Trans-Siberian Orchestra of their track "Christmas Eve/Sarajevo 12/24," which is a rock-orchestral medley prominently featuring and based on "Carol of the Bells" (a traditional Ukrainian carol composed by Mykola Leontovych). Other reactions to the post also identify it as a version of "Carol of the Bells," such as the one by Tommee Profitt.