10 Most Shocking WrestleMania Turns
1. Stone Cold Steve Austin (WrestleMania X-Seven)
It took guts to make the switch, and Steve Austin regrets it to this day, but 'The Rattlesnake' siding with the evil Vince McMahon at the conclusion of the biggest WWE pay-per-view of all time symbolically closed the door on the 'Attitude Era' and commenced the most creatively stimulating period Stone Cold had had in years.
Double teaming WWE Champion The Rock alongside Vince before pulverising 'The Great One' with a chair to score the victory, Austin memorably played off a line he'd delivered in a sit-down interview with the pair weeks earlier, in which he'd enforced how much he needed to beat Rock in subtle show of weakness hitherto unseen.
Joining forces with McMahon was previously unthinkable, but the only safe way to get the job done.
Truthfully, the heel turn drew mixed response from the mammoth live crowd in Houston, with Austin's strong Texas support struggling to come to terms with what they'd seen and/or overlooking the misdemeanour to enjoy his return to the top of the tree.
Over a decade on from the moment, the turn itself hasn't lost any impact and ages well as a bookend with Austin's first title win three years earlier at WrestleMania 14.