Movember takes place each November. Guys start by shaving their faces clean and then grow and trim their facial hair until they can boast a healthy 'stache for the cause. Every guy involved acts as a walking billboard for the event, which specifically focuses on bringing awareness to prostate cancer and other cancers that affect men.
Joe's not alone in the Movember movement -- Justin Bieber, Foster the People's Mark Foster and more have been vocal about supporting the important cause.
For more information about Movember, check out its official website and take a look at more sweet celebrity 'staches that have been grown for the campaign on AOL Music.