The marijuana business is quickly becoming a lucrative industry as more states move to legalize cannabis and Ray J has taken notice.

According to TMZ, the famed singer has announced a huge investment in a marijuana company that plans to roll out a special line of pre-rolled joints dubbed Ray Jay's.

Sources told TMZ that Ray J was putting down $5 million to create William Ray LA. The company will sell weed products and plans to collaborate with world renowned cannabis growing experts to market and sell the weed.

"Been working on deal for a year now!! Stayed up for days at a time getting work done! That’s why I look hella tired all the time! But It’s about to finally be official this week!!" he wrote on Instagram.

"Jus wanna say thank you to my team in Kentucky, Arizona, California and Las Vegas! We’ve work hard to get to this point! Now let’s go get these MMMMs!"

David Weintraub, Ray J's manager, said the company would also offer its services to other growers who need a wider reach and better marketing campaigns. 

They have not said when the company will start work but it will be based in California.