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Chris Evans -

Captain America looks more like a middle school gym teacher from the '70s with this handlebar mustache. 

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Justin Bieber -

This stringy mustache was a definite low-point for this pop star's facial hair career. 

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David Letterman - Perhaps this look is so jarring because the TV host's face had been bare for so long, but it's fair to say it's a wee bit unruly.

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Jonah Hill -

Before he grew in his full beard, Jonah Hill had this strange gradient growing on his face. 

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Andrew Garfield -

The actor looks almost unrecognizable with this scruffy look.

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Jim Carrey -

The usually bare-faced Jim Carrey sported this almost artificial-looking puffy beard of brown and gray. 

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Vince Vaughn - In 2003 the actor thought that this was going to be a good thing for his appearance... It seems he's learned his lesson, as this horrendous mustache never made a repeat performance.

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Riff Raff - Facial hair patterns never really work out, but this one is especially atrocious. It does definitely give him a 'special' look.

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Ashton Kutcher - The actor has had some good looking beards in the past, but this isn't one of them. It looks as if he just woke up and completely forgot about personal hygiene.

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Matthew McConaughey - Having a beard that is too long can actually detract from a man's overall appearance, as is demonstrated by this image of the famous actor.

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John Travolta - Why would he just have that little bit of beard there? Seriously, who on earth would think that looks good?

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Mel Gibson - In 2009 the actor decided to use this, what could loosely be called, 'style.' It ended up being the least stylish thing possible.

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Joaquin Phoenix - In 2010 the actor had to use this beard for a particular role, but then he liked it so much that he ended up keeping it.

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Brad Pitt -

Brad Pitt could be one of the best looking people in the world, but that doesn't mean he hasn't had a few flops, such as this beard.

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Channing Tatum - This type of beard decidedly does not favor the charming actor. At least he never repeated the look.

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Joe Jonas - Before getting a full beard, the singer tried out this style...which didn't work out to well.

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Bill Murray - Bill Murray's face is too recognizable to have a beard on top of it. Not only that, but this makes him look at least ten years older.

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Justin Timberlake - The singer let his beard grow just a bit too much. Though he looks great with a 5 o'clock shadow, the beard doesn't work quite as well.

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Johnny Depp - We are already accustomed to the actor's style of beard, however in this situation, the goatee has grown a little long.

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Ryan Gosling - The actor just seems a little unkempt, doesn't he?

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James Franco - The same could be said for James Franco and this disorganized beard.

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Daniel Craig - We're going to hope that a tragedy like this never repeats itself... what was he thinking?

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Matthew Broderick - A mustache is a very difficult look to pull off, and no, he hasn't succeeded.

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Jon Hamm - Is there such a thing as too much beard? Apparently there is.

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John Mayer - John is one of those men that looks much better without a beard, right?

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Adam Lambert - He looks like a villain out of a 90s action film.

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Michael Cera - Let's be clear on this. There are some men that should, under no circumstances, try to grow facial hair.

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Tom Hardy - Yet another example of a beard that's become way too long, and just ends up looking unkempt.

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Tom Hardy - Despite this look actually being for a character, we have to admit that this Tom really isn't looking his best.

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Shia LaBeouf - Even the actor himself looks unhappy, and we think we know why.

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Howie Mandel - Despite the fact that he's now cut it, the famous host spent way too much time with this soul patch.

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Adam Brody - If Adam had bothered to ensure the beard stayed solely on his face and didn't drift down his neck, maybe the result would have been better.

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Justin Bieber - Every time the singer tries to let his facial hair grow, the result is always this...

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Lil Wayne - If you're going to have that little, you may as well not have anything at all.

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Daniel Radcliffe -

Maybe he was undecided? It seems like he wanted a beard, but the beard didn't feel like growing in certain spots.

See also: Dramatic celebrity hair transformations

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