Matthew McConaughey 'rapped for 13 hours straight' after Snoop Dogg swapped fake joint for a real one

Matthew McConaughey 'rapped for 13 hours straight' after Snoop Dogg swapped fake joint for a real one

Between his public appearances, interviews and roles on the likes of True Detective and Wolf of Wall Street, Matthew McConaughey is known as one of Hollywood's more eccentric characters, and a story of the actor rapping on the set of his new film Beach Bum is as hilarious as it is Classic McConaughey.

In Beach Bum, Matthew McConaughey stars alongside the rapper Snoop Dogg, and promoting the film on Jimmy Kimmel Live!, McConaughey shared with the studio audience an experience he had with Snoop Dogg, and what he thought was a fake joint.

In the film, directed by Harmony Korine (who also directed 2012's Spring Breakers), McConaughey plays a stoner-writer living out in Florida as the aforementioned Beach Bum, and as you might imagine, his character smokes a lot of joints.

But when Snoop Dogg arrived on set, the rapper-turned-cooking-show-host noticed something rather weird: McConaughey had stocked up on fake joints. "I'm like, 'Oh no.' 'Who is that for? That's not for me?'" explained Snoop, before McConaughey interjected: "That was supposed to be for me!"

Then, in a big scene where McConaughey's character Moondog is about to take a few big drags, McConaughey revealed how Snoop Dogg pranked him in hilarious fashion.

"I turned to Snoop and I said, 'These are my prop joints: oregano,' because I know I'm gonna be pulling," McConaughey explained.

"It's about an eight-minute take. It's a long take if you're passing a joint back and forth and you're smoking hardcore [weed]. So the scene goes on and after the scene, I just feel like man I'm not sure that was prop [weed]. And Snoop goes: 'Yo Moondog, that wasn't prop weed, that was Snoop weed."

McConaughey explained that for the rest of the evening, he didn't speak another word of English. "It was one of those highs where I didn't really catch my breath until 5.30 p.m. the next day," the 49-year-old explained, after Snoop added: "You rapped for 13 hours straight."

Before the story of McConaughey's accidental stoned adventure, Snoop Dogg revealed that he always knew that he and the actor were meant to be friends. "I think me and Matthew are meant for each other," he explained. "It’s supposed to be."

Snoop Dogg Matthew McConaughey Credit: Getty

Beach Bum hits theatres on March 29 (today), after premiering at the festival SXSW.