Jared Leto started it off with a raging mohawk.
Simon Neil was then spotted at Reading and Leeds sporting his newly dyed hair and beard.
A usually stylish man, Mark Ronson has also gone to the dark (ermm....bleached) side, as seen in the Bicycle Song music video.
These guys have always been a hit with the ladies, but what do you think:
HOT OR NOT?
Leave us your thoughts.
