A video of two babies dancing while their dad plays guitar is BLOWING UP online right now.  They're 11-month-old twin girls, and as soon as the guitar starts, they look at each other and start swaying back-and-forth in unison.

The music starts at :13

Honestly, this is in the top 10 of the cutest things I've ever seen! I love how they look at each other in the beginning!