The WWE Universe can always expect the unexpected when it's time for one of WWE's marquee events. Here are 10 of the biggest surprise appearances to occur in the history of Royal Rumble or the Greatest Royal Rumble. Get your first month of WWE Network for FREE: http://wwenetwork.com Subscribe to WWE on YouTube: http://bit.ly/1i64OdT Visit WWE.com: http://goo.gl/akf0J4 Must-See WWE videos on YouTube: https://goo.gl/QmhBof
