Many WWE superstars chose to get a heavy tan. It supposedly makes them look better and more defined on TV. Naturally, for the biggest show of the year, WrestleMania, many wrestlers go even further with the tan than they normally would. This fan clearly suspected as much and brought a sign displaying the Randy Orton Orange-O-Metre to WrestleMania XXVII. It was clearly on display on the hard cam shots during the Orton versus CM Punk match and wasn't lying either: Orton looked positively radioactive in HD.
