Saw her show at the Colosseum in Vegas two years ago near the end of her 'residency' there.  Very high energy, lots of running around the stage and the whole room, really.  She looked terrific.  Was surprised at how petite she really is.  Truly what many of us would call a 'spinner'.  

That said...video I've seen of her, recorded in the last year was shocking to me.  Just strutting back and forth on stage at a walking pace, hair out of control, grotesque oversize shades hiding - something.  I dunno.  

Two years ago, she appeared to me to be 35 to 40-ish.  Seen in the OP's video and other vids recently, she's all of 50 now.  Still pretty damn hot but these last couple years have not been good for her.

Mutt cheated on her with her b-e-s-t friend.  Apparently devastated Shania.  She and her best friend basically traded husbands.

Friend of a friend was at a private concert she was performing at.  Raging bitch, by the sound of it.  Of the two hundred people or so there, he said all left non fans of her.  She is easy on the eyes, though.

Chevy Volt

  She's a zesty old broad. But, I'd hafta put something in her mouth to make sure she didn't start singing or anything.

"No matter how hot she is, someone somewhere is tired of putting up with her shit."