Shake it baby (updated)

This was parodied on South Park, but it really didn't need it, it is its own parody. Woa.



It is only missing: "the man in your life will enjoy the results as well!" 

Update:
Philocalist said: This was featured quite recently on UK daytime TV - I think there was a clip on YouTube featuring Holly Willoughby (the presenter) in action ... her facial expression was priceless!:-)

Found it!:

 

What I find particularly interesting is that the women all seem to want to point the thing at their faces while working it...