Talk about a way to make that next trip to the grocery store more exciting. These cashiers use the scanners at the check out lanes to provide shoppers with a musical performance that's sure to get everyone in the Christmas spirit.

This performance is a great combination of technical genius and creativity. First, they had to get all the scanners programmed so they would match the correct notes to be played, make the lights at the check-out synchronize to the music and set up the cameras.

After that, the cashiers all have to learn when to scan to hit the right notes at the right time. It had to have taken a lot of time to learn and practice to get it just right for their 'cashiers check-out concert.'