Is there a way to know in advance if a featured performer will be taking time off from a show?

It's a little late now since I have already purchased the tickets, but I was wondering if it is possible to find out if a featured performer(Holly Madison in Peepshow in my case) is taking time off. My daughter and I are big fans of Holly's and that is the sole reason we chose Peepshow. I know it would be unlikely that she would be taking time off when we have tickets, but my husband brought up the possibility, so I figured I would ask this question. I'd rather have it not be a last minute surprise if in the unlikely case she were to be taking time off.

The showrooms try their best to notify you if a Show cancels BUT...
Some times it just doesn't work out. My post here about missing the
notification that HUMAN NATURE was canceled...THEY DIDN'T HAVE MY
EMAIL ADDRESS RIGHT AND IT NEVER GOT TO ME.
I HAVE...received calls at home before I've left for vacation...
I've had calls in my RIO room...
That's why when you book with the box office they ask..."and what hotel
are you staying at"
Imagine the amount of calls they'd have to make...they just can't reach everyone.
SHOWS DO CANCEL FOR A VARIETY OF REASONS.....
CALL THE BOXOFFICE. Double check Holly will be working that night...
she IS very busy and has an active understudy...
If you really want to stay on top of it, take Planet Ho's local phone number
with you can call 'em 736.7114 or from home before you leave 1.877.333.9474
These days, I try and call each of my Shows before I leave home...