Britney Spears

Britney Spears' dancing genes must run in the family.

In a video the singer posted on her official YouTube page, her son Sean Preston shakes his groove thing for the video game Just Dance — and the 6-year-old has moves! (His father Kevin Federline was also a dancer.)

Britney Spears Is Engaged

Best moment? When he pushes his brother Jayden, 5, out of the way.

Watch the video below: