It's Movember, and Justin Bieber's 'stache is no bueno

Folks, it's Movember, which means many of the dudes around you are growing out their facial hair in honor of raising awareness for men's health (specifically prostate cancer, testicular cancer and mental health problems). Unfortunately, it also means we must bear witness to some truly creepster 'staches.

Exhibit A: Justin Bieber

No word if Bieber is actually participating in Movember, but it's not the first time he's dipped a toe into furry territory. The Biebs memorably shaved off his first attempt at a Ron Swanson special back in August.

Need a palate cleanser? Let's see who else is ditching the razor and giving Movember a go...

Matthew McConaughey's been beardy promoting Interstellar

Nick Jonas seems to have thrown out his razor

Brad Pitt grew a 'stache for his '70s movie By the Sea with Angie

And Zac Efron's gone scruffy

So if you want to brush up on your 'stache history (and how to do it right)...just check in with the original handlebar aficionado, Mr. Nick Offerman.