5 craziest things from the Royal Rumble 

#2 Rey Mysterio

Booyaka Booyaka, 619

Everyone's favorite underdog and a 28 year veteran of the sport, Rey Mysterio Jr finally made his return to a WWE ring since leaving in 2014 and it was hit with a monumental noise from the Philly crowd. Rey has been performing across the world for Lucha Underground, AAA, and various Indy promotions and has made it known that he wasn't itching to be back in WWE anytime soon, largely due to the schedule and money he can make off of appearances.

Still, it cannot be denied the decibel level of the Philly arena when '619' hit the speakers and Rey ran down the ramp. Eliminating Adam Cole and hitting 619's to Reigns, Cena, The Miz and Randy Orton, it was just like old times for the Mexican sensation. It remains to be seen if this was just a one-off appearance, but the WWE Universe must be clamoring for more in-ring action from Rey Mysterio.