NSFW! Swoon Over the Best Man Buns of 2015

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If there's one major trend we can get behind for the dudes in our lives (and the ones on the street, on the silver screen, at the grocery store…), it's the man bun.

Honestly, you couldn't really get away from them this year.

First there was Justin Bieber bringing new meaning to "summer lovin'" with a since-deleted Instagram post that showed the world his derriere (or, as he may feel about it, his only clear canvas for another round of ink). While naked on a boat, the "Sorry" singer pointed to … A metaphorical mountain? Freedom? The place he left his clothes?

Instagram

Whatever his intent, we bet you're a Belieber now.

WATCH: Justin Bieber Bares His Butt on Instagram

Meanwhile, Chrissy Teigen gifted us with the view she sees every day: husband John Legend's bare butt. OK, so his tush is partially obscured by the model's leg, but we're assuming that's only because something had to be left up to the imagination.

Instagram

Think of this as the man-equivalent to side boob.

Plus, Ashley Parker Angel reminded us that, despite his O-Town days being long over, he's still relevant -- well, his body is. He shared this very naked snap in honor of completing a #100DaysOfFitness challenge. "It's incredible how the human body responds and transforms to even just 100 days of a consistent diet and exercise program," he wrote on Instagram.

Instagram

Indeed, Ashley. Indeed!

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Those cracks were not whack, and now that they're firmly lodged into your brain (you're welcome), it's time to move your eyes from bottom to top, where that other man bun of utmost importance is located.

Sorry, Tina, but it's time to pay tribute to all those souls wandering through farmers markets in Los Angeles, Portland and Brooklyn by crowning the best celebrity man buns of 2015.

1. Jared Leto

The Thiry Seconds to Mars frontman is not afraid to take risks with his hair. Jared's neon pink 'do may be his most iconic look of 2015 (not easy for anyone to pull off, but, man, did he manage to do it well), but the Suicide Squad star will always be the king of the man bun to us -- even if he chopped it off earlier this year. Jordan Catalano-length hair forever!

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2. Harry Styles

Crowder/Legge/GC Images

How do you remove yourself from the stigma of boy bands and those days of dating squeaky clean celebs like Taylor Swift? You grow your hair out a la an '80s hair band singer, then pile those bad boy locks on top of your head. Add a headband for good measure -- or so a loose strand doesn't get in your eye during a workout. We understand, Harry -- those stray hairs are the worst!

3. Andrew Garfield

FilmMagic

He's best known for playing the all-American superhero Spider-Man (and for dating everyone's favorite funny girl next door, Emma Stone), but this British actor knows how to scruff things up, and we can't thank him enough for it.
Not fully with us yet? Check out the back view:

Kevin Winter/Getty Images

See? Even Elizabeth Banks approves.

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4. Leonardo DiCaprio

Splash News

Dad bod? Maybe. Dad hair? Never. Both, however, hit iconic status this year, with even Justin grooving along with Leo's man bun at Rihanna's Met Gala after party. Yes, with it, not to it.

5. Future

The rapper's dreads are pretty much perfection wrapped up into a pony. If there was an award for Most Dapper Man Bun, he would win in a landslide. You know what? We're giving that award to him. Congratulations, Future! You did it!

6. Gavin Rossdale

Kevin Winter/Getty Images

His marriage to Gwen Stefani may have fallen apart, but the Bush singer's bun game is on point, just like it has been for many years now. If it ain't broke, right?

Kevin Winter/Getty Images

WATCH: Gwen Stefani Debuts Breakup Song Following Split From Gavin Rossdale

7. Imagine Dragons' Dan Reynolds

Frank Hoensch/Redferns

Even curly-haired dudes got in on this action! You preach about that hipster hair, Dan. Preach!

Let us not forget the great man buns of years' past as we look forward to 2016. Here's looking at you Brad Pitt, David Beckham and Jake Gyllenhaal.

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Hollywood hair hotties of yore, we miss your glorious locks (and Jake's festive booty), and we hope you make the list next year. Or, may we interest you in jumping on the unnecessary beard trends train? We would be happy to gawk at glitter and mini Christmas ornaments in your face scruff as much as either of your man buns.

Just think about it. That's all we ask.