Four youngsters are on the stage and immediately have the crowd in fits of laughter. It’s all down to their comic performance at a Christmas concert, which features them singing in unexpected ways.

It takes a while for the audience to grasp that this isn’t your usual barber quartet. And the audience can’t stop laughing as soon as the guy in the vest reaches the stage. At 2:55, the fun truly kicks into high gear. The entire dance is loaded with laughter and holiday spirit.

Watch their performance below and laugh along with the audience!