Khloe Kardashian,Kylie & Kendall Jenner don amazing diguise (Photos)

Khloe, Kendall and Kylie donned old lady disguises to play a prank on the unsuspecting tourists on Friday.The sisters were completely unrecognizable beneath some pretty unappealing wigs and prosthetic make-up for a ride with unsuspecting tourists in a Hollywood tour bus

Little did one group know they had three sitting right beside them the whole time.
The best disguise goes to?