It's the first of November, which means it's the start of Movember or NoShavember. You've likely seen these words before and may have wondered what they're all about.
Will Ferrell and John C. Reilly have some tips on how to grow a moustache.
In honor of "Movember," see how many of these celebrities you can identify by their mustaches.
As the fall chill sets in, you may see some men sporting scruffy faces. It could be laziness, it could be a fashion statement, or maybe it's a way for men to look out for each other.