Holly Holm has done the unthinkable. Not only did she beat Ronda Rousey for the UFC Bantamweight title in Melbourne, Australia, she knocked her out!

The knock out came in the second round of the fight when Holm connected with a kick to Rousey's neck that knocked her down. Holm then landed a hammer fist punch to finish off Rousey that lead referee Herb Dean to stop the fight.

And as for the fight itself, Holm dominated the entire fight. She seemed to frustrate Rousey as she kept landing kicks and punches as well as not letting Rousey take her down. Rousey was just to aggressive and she tried to box Holm who was a boxing and kickboxing world champion before she got into the UFC.

Clearly Rousey's camp had the wrong game plan going into the fight. After the fight, Rousey was taken to the hospital to get looked at.

Holm was a 14-1 underdog going into this fight and has just ended the undefeated streak of Rousey. This fight will go down as one of the biggest upsets of all time.

getty images
getty images

More From 600 ESPN El Paso