Well now we know where one of those 25 million copies of Ubisoft's Just Dance games ended up: In Britney Spears' living room, where the all-singing, all-dancing performance artist recorded her son Preston getting down to a little "Shake Your Groove Thing".

Ubisoft couldn't pay for a better endorsement of Just Dance Kids 2. Spears' adorable little offspring is completely wrapped up in his routine, pausing only to push his little brother out of the way when his groove is threatened. It's enough to make me want to run out to the store for my own copy and teach my two seven-month-old boys some of my moves.

I suppose I'd need moves for that.

And children that can stand.

Oh well.

Britney Spears' Son ‘Shakes His Groove Thing' (Video) [Babble]