As most of the world knows by now, Canadian superstar Justin Bieber gifted us all with a glimpse of his bare behind on Instagram late last night.

Related: The Rock Bares His Butt, 69's With SNL's Pete Davidson

The photo, which 15 hours later has 1.7 million likes, and 503,000 comments, shows off an impressive bubble Bieber butt, as Justin officially joins the likes of Zac Efron and Nick Jonas as professional gay baiters.

While we celebrate the Bieb's firm, coin-bounceable buttocks, it's important to take a look at other male celebs who've granted us a view of their rear.

Here are 9 of our other favorite famous male booties.

****UPDATE****

In light of recent developments (in the past 3 hours), we were compelled to add this true gem. Thank you, Chrissy Teigen.

John Legend

9. Tyson Beckford 

8. Michael Fassbender (Shame)

7. Josh Hartnett (Penny Dreadful)

6. Matt Bomer (Magic Mike)

5. Taye Diggs (In The Wood)

4. Jake Gyllenhaal (Love & Other Drugs)

3. Idris Elba

2. Channing Tatum (Magic Mike)

1. Hugh Jackman (X Men: Days of Future Past)

God bless yr butts, boys.