(CNN) -- Michelle Obama, never one to turn down an opportunity to champion healthy eating, has co-opted a popular tune -- and, in six seconds, created a viral sensation.

Here's how it happened.

In an #AskTheFirstLady segment, Barack Obama impersonator Imman Crosson, or @AlphaCat, asked Obama, "How many calories do you burn every time you 'turn up'?!"

(That's lingo for ... well, in the safest sense, cutting loose).

Her six-second response, posted on the White House Vine account?

Well, just watch.