Sure, you've seen flash mobs happen at a moment's notice, but have you ever seen a full-on dance party break out on the subway? We think not.
The sweetest little girl inspired the dance-off on the Bedford L subway platform in Williamsburg, Brooklyn, as she grooved to the Grateful Dead's cover of 'Me & My Uncle.' Her dancing was so adorable, the people surrounding her couldn't help but join in.
This video will make you smile: