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    23 Boy-Banders And Bad Boys Showing Off Their Naked And Nearly-Naked Butts [NSFW]

    One Direction, *NSYNC, True Blood, Magic Mike—asses, all of 'em! Bonus booty pics included.

    1. Niall Horan got a temporary tattoo of James Corden's face on his behind.

    2. We'd already (probably) seen Louis Tomlinson's bum.

    BONUS BOOTY! Now that is some serious badonkadonk.

    And just in case you didn't get your 1D fix, here's Harry Styles twerking at the 2013 Teen Choice Awards.

    3. The Wanted boys have also showed some bum...

    4. Max George went a step further than his bandmates, but the effort was still kinda half-assed...

    BONUS NUDEY: OK, so he has done the full Monty.

    Back to half-assing things! Justin Timberlake's non-butt pic somehow worked better than Max's.

    5. And the *NSYNC alum really did bare it all in Friends With Benefits.

    6. But no matter how cool JT seems today, we'll never say bye, bye, bye to these half-naked gems.

    As for that other late '90s group, the Backstreet Boys?

    7. Nick Carter eventually showed some crack.

    But for the most part, Brian Littrell kept him from turning too smutty.

    8. And back before frosted tips and wide-leg jeans were in, Take That were the princes of boy band land.

    Since then, Robbie Williams, in particular, has enjoyed continued success as a solo artist.

    9. So when he mooned his audience on live TV in 2010, it was totally no big deal.

    Flash back again to the late '80s and early '90s when New Kids on the Block had "the right stuff."

    10. Now come on back to 2013, where the boys from Boston still look wicked good...

    11. Donnie Wahlberg has aged especially well, as evidenced by this naked shower shot.

    But the boy-banders who are now in their forties...

    The ones who are now in their thirties...

    The ones currently in their late-teens and early-twenties prime....

    And the future boy-banders who aren't even into the double-digits yet...

    All become more like brothers than bandmates as they rise through the ranks of fame.

    And maybe sometimes they get a little too pleased with themselves…

    Especially when girls are throwing bras at them...

    And even when feminine products are hurled at their heads!

    Just one boy-bander with an ego can be dangerous.

    But five of them together? That's when shenanigans are on and the clothes come off.

    OK, ENOUGH WITH THE BOY-BANDERS AND THEIR BUTTS!!!!!!

    On to the bad boys! Let's ease in with some Justin Bieber...

    (Keep in mind that badness is relative.)

    12. And in the Biebs' case, full nudity is still pretty major, especially when it's at granny's house.

    BONUS BOOTY! More Justin crack—remember, it's whack.

    13. Now for a much bigger, much badder boy, here's Joe Manganiello. True Blood's most tempting tushy, don't you think?

    14. His costars Stephen Moyer and Alexander Skardgard have some fine behinds as well.

    BONUS BOOTY! Being a vampire doesn't preclude Alcide from getting his squat reps in.

    And—ANOTHER BONUS NUDEY! Here's your proof: Human blood is carb and gluten-free substance.

    15. But not all bad boys in the buff are undead. Gerard Butler is very much alive—and very naked!

    BONUS NUDEY! Drop that towel, will ya?

    16. Let's not forget about Benedict Cumberbatch, whose rear end pretty much has its own subculture.

    17. And Michael Fassbender! Couldn't leave that man and his enormous...talent off this list.

    18. Another hot, pantsless ginger? Prince Harry, who learned the hard way that what happen in Vegas doesn't always stay there.

    19. The States don't have a real monarchy, but they do have Channing Tatum and His Royal Hiney.

    It was actually his real-life experience as a stripper that inspired Magic Mike.

    Werk it, smoochie!

    20. BONUS BOOTIES! God bless America.

    21. Magic Mike also gave Matthew McConaughey the chance to whip off his assless chaps on stage.

    22. And Matt Bomer got to shake his money maker...

    While Joe Manganiello—the only two-timer on this butt-baring list—did his part to heat things up.

    23. Then there was Alex Pettyfer, who seemed a tad shy in the beginning...

    But he practiced...

    Got some tips from the pros...

    And—just like that—The Kid made his own magic!

    Channing was pleased with his protégé's progress.

    And when The Kid said, "Hey, Mike, I think we should be best friends..."

    The man, the myth, the legend was like..."OK."

    And these bad boys—just like the boy-banders—formed a beautiful bromance.

    But that might've never happened were it not for a few...

    Bare...

    BUTTS!

    And guys, don't be jealous. Eat well, work those glutes...

    And you'll have a great ass in no time!