DEMI Lovato, Snoop Dogg, and more celebrities are getting into the 4/20 spirit by smoking, posting funny memes, and sharing throwback videos.

April 20 has long been celebrated as Weed Day, and famous faces are observing the marijuana holiday in their own ways.

Demi Lovato and other celebrities are celebrating 4/20 on Tuesday Credit: Instagram

Demi sparked up after sparking backlash on Monday for calling out a frozen yogurt shop for selling sugar-free items and using terms she felt was triggering for her, and maybe others, as she recovers from an eating disorder.

After back-and-forths with the store on Instagram, trending on Twitter with people either slamming her for using her influence against a small business or praising her for trying to do good, she decided to smoke a little.

The 28-year-old posted an eight-minute video to further explain her thoughts on the fro-yo situation and to apologize for how things might’ve come across, but she still used 4/20 on Tuesday as an excuse to try to relax with pot.

Sitting on a hammock at a house by the water, Demi smiled as she lit up.

The singer shared photos of her smoking by the beach Credit: Instagram

She previously shared that she’s not completely sober after her near-fatal 2018 overdose Credit: Getty Images – Getty

“Happy 420,” she captioned the photo, which comes after she revealed in her recent Dancing With the Devil documentary that she’s not completely sober after her near-fatal 2018 overdose.

The Met Him Last Night singer revealed at the time: ‘I’ve learned that shutting the door on things makes me want to open the door even more.

“I’ve learned that it doesn’t work for me to say, ‘I’m never going to do this again.’’

She added that she’s no longer using “stuff that’s going to kill” her but still wants to “get some relief” with pot.

She said in her new documentary that she’s only staying away from ‘stuff that’s going to kill’ her Credit: Getty

She’s still allowing herself to smoke marijuana Credit: AFP

Demi continued: ‘Telling myself that I can never have a drink or smoke marijuana, I feel like that’s setting myself up for failure cause I’m such a black-and-white thinker.”

Playing in the background of the photo was Demi’s new song California Sober, with the revealing lyrics: “I’m California sober. It doesn’t have to mean the growing part is over. No it ain’t black or white, it’s all of the colors.”

Snoop Dogg, who famously loves to smoke, started off the day with a photo on Instagram of a giant jar with his name on it, full of marijuana and with a lighter next to it.

“Good morning 4/20,” he captioned it.

Rapper Snoop Dogg has been celebrating the holiday with a bunch of personal photos and some fun memes Credit: Getty

He started the day off with a picture of a giant jar of pot with his name on it Credit: Instagram/snoopdogg

On another Tuesday post, the rapper added that “Its a @snoopdogg holiday 💪🏾”

The 49-year-old also shared a meme video depictting “4/20 in your 20s vs 4/20 in your 30s.”

The first grouping is smoking giant blunts and partying with friends, while the second is spending the holiday lying in bed, only to be woken up by his kids jumping on him, trying to get him up.

Snoop had fans laughing with a meme about the difference in how people celebrate 4/20 based on how old they are Credit: Instagram

One fan commented: “Even in his 40s snoop is still in his twenties”

A second wrote: “I swear snoops page is like a meme page with 50 mil followers 😂😭😂”

Matthew McConaughey posted a throwback video of himself and Snoop on Tuesday Credit: Instagram

Snoop’s The Beach Bum co-star Matthew McConaughey celebrated the day by posting a throwback video of the two of them driving around together for Carpool Karaoke: The Series in 2019.

Teen Mom star Devoin Austin showed off his pot stash on Instagram, which he has tucked away in a fake Canada Dry soda container.

“It is 420,” he wrote with it.

Teen Mom’s Devoin Austin showed off his marijuana stash for 420 Credit: Instagram/devoinaustin

The reality star shares daughter Nova, 9, with his ex Briana DeJesus Credit: Instagram

The 28-year-old reality star, who shares 9-year-old daughter Nova with ex Briana DeJesus, went on to answer some questions from his followers to celebrate.

He shared his favorite weed strains, a wing recipe for people to enjoy on the holiday, and said he’s ready to “turn up.”

The Real Housewives of Beverly Hills star Dorit Kemsley used Weed Day as an opportunity to share “one of the funniest moments of [her] #RHOBH career.”

She wrote “Happy 4/20” and shared a throwback clip from the show of the group’s infamous Hawaii trip when Kyle Richards’ husband Mauricio Umansky was very high at the dinner table.

Real Housewives of Beverly Hills’ Dorit Kemsley shared a throwback clip of when Kyle Richards’ husband Mauricio Umansky was high during their Hawaii trip Credit: Instagram