Selena Gomez (22) has made fun of Natalia Kills (28) after she's had to stay in hospital for several days as a result of being beaten up by Katy Perry in a fight.
Natalia reacted to Selena's ridicule by reminding her of the time when Katy 'made mincemeat' of Selena in a dressing room.
This did not go down well with Selena, and she challenged Natalia to a fight.
The two pop princesses eventually face each other on a wrestling mat, surrounded by select groups of their fans.
Before the fight they test their strength in an arm wrestling match, and as the fight starts the girls circle each other briefly, then every girl grabs the other's hair with both hands, and Natalia and Selena start to rip handfuls of hair from each other's heads...
Natalia Kills: 28 years, 5'2", 46 kg
Selena Gomez: 22 years, 5'5", 54 kg
