Warning: After watching this epic wedding dance by the groom and friends, you may not look at wedding dance videos the same way again. Your calves might burn, too.
The men perform a thunderous Irish dance with stunning synchronicity at the late-March wedding in Belfast, Ireland. However, it's all in a day's work for these guests.
Bride and groom Mairead McCargo and Rob Wilson are teachers at The Matthews Academy of Irish Dancing, and formerly toured with the iconic "Lord of the Dance" for eight years. And we all make a note: "Attend the weddings of professional dancers."