In front of a record crowd of over 56,000 and with millions watching around the world Holly Holm did the unthinkable and defeated the once untouchable Ronda Rousey to claim the UFC Bantamweight title at Etihad Stadium in Melbourne.

With one left-footed kick to the back of the head, Holm ended Rousey's undefeated record with a second round knockout.

Holm's win will go down as the biggest upset in UFC history, as she become the first women to defeat Rousey inside the Octagon and also created history to become the first woman ever to hold a World Championship in both boxing and MMA.

Holm's record improved to 9-0 but with a rematch on the cards for UFC 200 in July 2016 against Rousey, that record could change.

However, for now she's the baddest woman on the planet.

https://www.youtube.com/watch?v=JciZeYW_Kw0