#4. Ronda Rousey - Royal Rumble (January 28th, 2018)
Ronda Rousey's WWE debut was always going to be a matter of when and not if. Still, fans were still absolutely blindsided by the former UFC champion's appearance during WWE Royal Rumble 2018.
After Asuka had won the Royal Rumble match, she confronted both Raw Women's Champion Alexa Bliss and SmackDown Live Women's Champion Charlotte Flair, but the three women were interrupted.
A female WWE star said her life is in danger. Details HERE
Joan Jett's 'Bad Reputation' blared out of the PA, the iconic style lettering came up on the Titantron with Rousey's surname and a visibly ecstatic "Baddest Woman on the Planet" came out wearing 'Rowdy' Roddy Piper's jacket (literally his actual jacket, bequeathed to her by the late WWE legend).
With the commentary team losing their minds, Rousey proceeded to gesture towards the WrestleMania sign, indicating that she intended to participate in the Show of Shows that year. The whole time, meanwhile, the live arena crowd was going absolutely nuts.
Making this debut even better was ESPN immediately announcing that Rousey had signed a full-time contract with WWE, which was something nobody was expecting. As we know now, Rousey would go on to win the Raw Women's Title and eventually main event WrestleMania alongside Charlotte Flair and Becky Lynch.