If you find yourself needing a dose of Christmas cheer while traveling during this holiday season, you may hope that you run into this guy. Travelers at the Seattle-Tacoma International Airport were treated to an impromptu Christmas music treat when a one-man band was spotted marching through a terminal while singing "Jingle Bell Rock." According to the people who uploaded the video, he succeeded in brightening their day! Watch the musician spread cheer above, and be sure to check out more must-see viral videos [1].