Seth Rogen has to be Hollywood's biggest fan of cannabis as he now even has his very own weed brand called Houseplant. The stoner funnyman dropped by to meet up with Conan O'Brien in the final week of his show, airing over on TBS. But Seth didn't just arrive empty-handed for Television's longest-serving late-night host, who's been in front of the camera late in the night for 28 years. He came bearing a gift for Conan, which was a joint to get him to loosen up and high right on camera.

The TBS late-night show's last week featured the comedic host taking fans on a trip down memory lane this week. After Conan takes quite the time off once his show ends after the last show on June 24 and having all the world's free time to his hands, he admitted to Rogen that he isn't that sure what he'll do now in his downtime. 

Rogen had a plan already in his mind to help and suggested he should take up smoking marijuana. We could see from Seth's mischievous smile that something would go down, and soon the writers and producers pulled out a joint that Conan thought was a birthday candle.

"I think you should take one hit of that weed, and you'll have a really good time," Seth Rogen told O'Brien as he seemed a bit hesitant on the idea, to which he finally softened and smoked to a buzz of high cheers from the audience right alongside co-host Andy Ritcher. "I really don't know what the fuck I'm doing," after passing it to Seth, who then had to join in on the fun and took a few hits to enjoy himself. Soon after the high antics, the late-night host somehow did his best to conduct the interview even in his state. 

‍

Just in case you missed out, here's what you need to know about Seth Rogen's cannabis brand "Houseplant."

‍