04/23/2014 06:01 pm ET Updated Apr 23, 2014

Watch These Grooving 'Grannies' Get Down Before Running Marathons For A Good Cause

Step aside, Mrs. Doubtfire.

These three young women, known as the "Jammin' Grannies," rock the grandma get-up better than anyone we've ever seen before.

And boy do they know how to bust a move!

To get themselves pumped up before they run marathons, they dress up as "grannies" -- with wigs and all -- and rock out in honor of mental health, according to their Facebook page.

On March 29 at Ukrop's Monument Ave 10k marathon in Richmond, Va., these grannies danced to V.I.C's "Wobble," and had everyone wobbling with them.

Take note of the way the grannie in the pink pants moves her hips. It's almost as good as the crip walk that the grannie in the blue pants busts out around the 20 second mark.

h/t RightThisMinute