It seem's Justin Bieber wasn't serious about taking on Tom Cruise in the octagon...
Paparazzi caught up with Bieber and either he was kidding or maybe he just changed his mind after seeing everyone's comments.
How did this whole fight thing come about? Justin says he had just seen an interview with Cruise so he was on his mind, and decided to send out the tweet... but it was all just a joke apparently.
He even says that Tom would probably "whoop his a**" in a fight