Real men have longish and untamed hair. Look at Jesus. Would you dare say Jesus isn't a real man? Because he'll have you in the car park if you try to suggest that he isn't, or if you spill his pint.
For once, Psychotic has the right idea. Long hair is awesome. And also, this is just me, shaved heads on white people who aren't Bruce Willis usually make me think they think they're ghetto.