Gotta love them blondes. 
rah rah sis boom bah!
video is only 15 seconds, but hilarious. Looks like her knee bumped her jaw.
I dunno. It just looks to me like she loses her balance at the height of her leg swing. The one still that supposedly shows her leg hitting her face does not seem to show that at all.
I paused the video and it looked like her knee bumped her chin. If there was any contact then it wasn’t very hard at all. I don’t think it hurt anything but her pride.
Still very funny. 