Justin Bieber's Casamigos Halloween Party Costume Has To Be Seen To Be Believed

Justin Bieber opts for a bizarre look by donning a snorkel and flippers for Casamigos Halloween bash - after wife Hailey revealed why their dress sense is 'on different planets'

Justin Bieber, Megan Fox, Machine Gun Kelly & More Stars Dress Up to Attend Rande Gerber's Casamigos Halloween Party!

Justin Bieber, Megan Fox, Machine Gun Kelly & More Stars Dress Up to Attend Randee Gerber's Casamigos Halloween Party!