Celebrities and their views about smoking pot.

Yes it is still taboo, but a lot of people are not afraid to assume that they smoke or have smoked pot at some stage of their life.

More and more celebrities are speaking of their drug usage as they advocate for the legalization of marijuana. Some these famous folks have never hidden the fact that they smoke weed, while other celebrity's pro pot stances may surprise you.

However, many of them are openly pro pot activists in a way, as they go on shows to discuss their casual cannabis use, and to support the medical cannabis use or even full decriminalization; like Tommy Chong who is a pot activist and a member of The National Organization for the Reform Law of Marijuana (NORML).

Others like Snoop Dogg and Rihanna make no effort to hide their habit, but others such as Justin Bieber have gone to great lengths to try and keep it a secret to no avail. Plus, a few surprise group of celebrities’ smokers.

From Megan Fox to Bill Maher and others: check out the celebrities who smoke or have already had smoked marijuana.

Megan Fox

Actress and model she told British GQ, "I hope they legalize marijuana and when they do I’ll be the first person in line to buy my pack of joints."

Jennifer Aniston

"I enjoy from time to time. There's nothing wrong with that, "she said in an interview with Rolling Stone magazine in 2001.

Miley Cyrus

She has spoken openly about the subject several times and even lit up a joint on stage show at the Europe Music Awards in 2013, according to (WENN.COM).

Seth Rogen

In an interview on David Letterman's talk show, the comedian spoke openly about being a user.

Bill Maher

Bill Maher is one of the most outspoken advocates for the legalization of marijuana.  He has stated, "Look, I have never made a secret of the fact that I have tried marijuana... About 50,000 times."

Dave Chappelle

Well known for being an advocate of smoking weed. He has stated, "Weed’s not as bad as everything else… ’cause weed is a background substance. You know what I mean, you can smoke some herb and still function. You ain’t crisp… but you’ll function."

Zach Galifianakis

‘I smoke so much pot that sometimes i forget to smoke it’, he wrote.

Cameron Diaz

The actress has spoken more than once about the use of marijuana. In 2011, in an interview with the George Lopez Show, she said that she was studying at the same college as Snoop Dogg and that she probably must have bought marijuana from him sometime.

Morgan Freeman

"I never quit marijuana," he said in an interview with The Guardian in 2003. For the actor, this is the herb of God.

Tommy Chong

The comedian Tommy Chong rose to fame as one half of the pot smoking comedy duo Cheech and Chong.Both comedians are advocates for legalizing marijuana. (Apega/WENN.COM)

Sting

Sting is for the legalization of marijuana. He has stated, "The War on Drugs has failed, but it’s worse than that. It is actively harming our society. Violent crime is thriving in the shadows to which the drug trade has been consigned. People who genuinely need help can’t get it. Neither can people who need medical marijuana to treat terrible diseases. We are spending billions, filling up our prisons with non-violent offenders and sacrificing our liberties."

Woody Harrelson

Woody Harrelson is one of the most outspoken advocates of marijuana usage in Hollywood. He has stated, "Marijuana’s about marijuana. That’s consensual, victim-less crime. That’s saying, I think I should have the freedom to do whatever the hell I want to do if I’m living in a so-called free country, as long as I’m not hurting someone else. That’s freedom. If I’m gonna hit myself in the head with a hammer, so be it. That’s freedom."

Oprah Winfrey

On "Watch What Happens: Live," The famous Journalist also admitted that she smoked weed back in 1982.

George Clooney

The television director has said, "I didn’t live my life in the right way for politics, you know I fu**ed too many chicks and did too many drugs, and that’s the truth… I drank the bong water."

Whoopi Goldberg

The actress is a big advocate of using the plant, especially for medicinal purposes. In April 2016, she has even launched a line of therapeutic products that promise to relieve Colic and Menstrual pain.

Snoop Dogg

No news too, right? Among celebrities, the guy is the most notoriously and enthusiast one - if not the biggest - enthusiasts of marijuana use. Also, along with Dr. Dree, he composed the hit ''Smoke Weed Everyday''.

Rihanna

In her Instagram account, the Singer lives posting photos of her smoking marijuana (Rihanna/Instagram). In 2015, an information on the internet saying that she would launch her own brand of plant products, called Marihanna caused a huge impact, unfortunately the news was nothing more than a rumor.

Justin Timberlake

"The only thing that marijuana does for me is that with it I can stop thinking. Sometimes I need to turn my brain off. Some people just look better when they're stoned, "the singer told Playboy in 2011.

Lady Gaga

During a radio program in 2013 she revealed that she spent a season smoking between 15 and 20 packs per day. Gaga said she stopped using marijuana because she realized she was addicted and that it was not doing her any good anymore.

Justin Bieber

Justin Bieber was spotted smoking weed in a hotel room back in 2013.

Chris Brown

Two months after he tested positive for marijuana while still on probation (for his 2009 bust-up with Rihanna) in September 2012, the singer posted a series of photos on Instagram of him in Amsterdam sampling the local recreational herb during his tour stop in the city. (Chris Brown/Instagram)

Willie Nelson

Willie Nelson is a well known weed advocate. He has stated, "I think people need to be educated to the fact that marijuana is not a drug. Marijuana is an herb and a flower. God put it here. If He put it here and He wants it to grow, what gives the government the right to say that God is wrong?”

Madonna

Madonna has been very vocal about smoking weed in the past.

Wiz Khalifa

Wiz Khalifa is a huge advocate of smoking marajuana. He has stated, "I’m a cigarello fiend, smokin’ weed like it’s oxygen."

Jay-Z

Jay-Z has made references to smoking weed in several of his songs.

Lil Wayne

Lil Wayne is very open about his drug use. He has stated, "I smoke weed all day. I’m a very successful addict. And a smart one. And a very charismatic one."

Redman

Redman has been advocating the use of marijuana for decades.

Bob Marley

The Jamaican reggae artist was over the pot lifestyle.

Barack Obama

The biography Barack Obama: The Story, released in 2012, reveals that he smoked marijuana while in college. In a controversial interview with The New Yorker in 2014, Obama not only confirmed the information, but also stated that he repudiates the way users are tried in the United States. "Middle-class youths are not arrested for smoking marijuana, but poor young people are." said the former president of United States.

George W. Bush

George W. Bush a former president of the United states, refrained from speaking about his past marijuana use stating, "I wouldn't answer the marijuana question. You know why? 'Cause I don't want some little kid doing what I tried."

Bill Clinton

The former President back in 1990s Bill Clinton, has admitted to smoking pot. "When I was in England, I experimented with marijuana a time or two, and I didn't like it, and I didn't inhale, and I never tried again," he said.

Arnold Schwarzenegger

In a documentary recorded in the 1970s, the star appears to be smoking a joint. Decades later, when he was already governor of California, he said that marijuana is just a leaf, not a drug. Despite being affiliated with the Republican Party and having already made contradictory statements on the subject, Schwarzenegger worked toward more lenient laws for the use of the plant in California.

Michael Phelps

According to the olympic gold medalist had appologised for his use of pot… in 2008 after the Olypic in Beijing according to Olympian Michael Phelps was photographed hitting a bong back in 2009.

LeBron James

The famous Basketball player has admitted to smoking weed when he was in high school.He has not yet admitted to using one of these awesome vapes later in life.

Phil Jackson

NBA coach, wrote about his marijuana usage in the book Maverick.

Usain Bolt

"Everyone has tried marijuana, including me, but when I was very young," the world's fastest man told the German newspaper Bild.

Most of them are pretty cool and very successful. This helps us realize that you can smoke and still aspire to great things, unlike the perception that stoners are lazy, uneducated and wasters.