Pot is legal now in Colorado and Washington and few areas of the country might be happier about it than Hollywood.

Somewhere ranked between old hippies and college students, celebrities are among the biggest aficionados of the green stuff. And we're not talking about declaring that people should be accepting of marijuana or non-judgmental of what people do with their free time. No, we mean full-on smoking a spliff with paparazzi cameras firing and not giving a rap. From Miley Cyrus to Rihanna, check out our roundup of the top 17 celebrities who might want to consider moving to Colorado to get their green on.

What famous Olympian was caught smoking out of a bong? Find out after the jump!

1. Lady Gaga

Related Article: Was Amanda Bynes Smoking Up Behind the Wheel?!

Related Article: Lady Gaga Puffs "Wondrous" Joint During Amsterdam Show

Gaga made no secret of her love for the herb when she smoked a joint during the middle of a show in Amsterdam. "I want you to know it has totally changed my life and I've really cut down on drinking," she said. "It has been a totally spiritual experience for me with my music. It's like saying everybody needs to take a breath and it's going to be okay." Kind of hard to have a poker face when your eyes are bloodshot though. Just saying...

2. Kristen Stewart

We don't think these two go hand in hand, but Kristen admitted last June that she's "a weirdo who smokes pot."

3. Michael Phelps

In between the Beijing and London Olympics, the world's most decorated Olympian used his lungs in a different way by taking rips from a bong. Now that he's officially retired from swimming, he's got plenty of time to partake in this other activity.

4. Paris Hilton

One good thing about being a socialite? Access to top quality pot. Unfortunately for Paris, this photo of her was taken by a friend ONE DAY after she gave an interview where she declared she didn't smoke weed. She was also detained in France for marijuana possession in 2010.

5. Justin Timberlake

Some people use yoga to clear their mind, but Justin seems to prefer pot for that. "The only thing pot does for me is it gets me to stop thinking," he said in June 2011. "Sometimes I have a brain that needs to be turned off. Some people are just better high."

6. Miley Cyrus

To be fair, Miley was caught taking a bong hit of salvia and not pot back in 2010. Salvia is still legal in the US, but has hallucinogenic properties.

7. Mischa Barton

Mischa has been busted by the cops for marijuana possession, but that's not what surprises us most. Several photos on different occasions show that for some reason, she seems to prefer smoking pot in a bikini.

8. Lindsay Lohan

Seriously, is anyone surprised by this?

9. Zach Braff

Here's how you know Zach really likes his green. A supermodel is caressing his leg and he's totally focused on his spliff. A man has to have his priorities!

10. Rihanna

Rihanna smokes pot and doesn't care what you think about it. When a photo of her smoking a joint at Coachella surfaced last April, she tweeted to MTV, "Yikes...I ran out of f**** to give."

11. Charlize Theron

We thought we'd seen it all, but Charlize came up with a brand new use for an apple to get her marijuana fix.

12. Ryan Gosling

Whether ot not you approve of pot use, you have to admit Ryan has some serious balls to smoke a doobie on the red carpet at Cannes. We didn't think he had it in him.

13. Lil' Wayne

Smoking a joint for a magazine photo shoot is taking your love of weed to a whole new level, as he did with Complex Magazine.

14. Daniel Radcliffe

He's got a lot of time on his hands these days. Guess it doesn't really matter if he's in a perma-high or not...

15. Amanda Bynes

Amanda has denied everything this year from driving drunk to getting naked in a tanning booth, but surprisingly, the one thing she hasn't denied are the accusations of her smoking pot behind the wheel.

16. Cameron Diaz

There's Something About Mary (Jane).

17. Snoop Dogg/Lion/Whatever he calls himself these days

Duh.

Which celebrity weed head are you most surprised by?

Photos courtesy of Getty Images, Complex Magazine, TMZ, News of the World and Splash News