WATCH: Britney Spears' Son Sean Preston Shaking His "Groove Thing"

When your mom is Britney Spears and your dad is former dancer Kevin Federline, shaking your booty is genetic! If there was any doubt that Spears' kids inherited her rhythm, this home video -- in which son Sean Preston, 6, boogies along with a dance video game -- makes a strong case for his future stage career. Watch below!

Spears, 30, posted the vid to Twitter last week, with the caption "Preston getting his groove on!" In the clip, little Preston rocks out to the Peaches and Herb song "Shake Your Groove Thing" while playing Dance Central 2 in the living room. His little brother Jayden, 5, also bobs his head to the music as he wheels in on a tricycle -- only to have Sean Preston shove him out of the frame. (Maybe diva tendencies are genetic, too?)

Spears, who announced her engagement to talent agent Jason Trawick on Dec. 16, loves to show off her adorable boys on Twitter. In addition to the dancing video, she recently posted photos of Preston ("My little Hercules!") at gymnastics class and Jayden on their backyard trampoline. Sounds like she's taking the parenting advice she offered Beyonce in September: "Just treasure the moments."

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