JAY-Z is getting in the legal weed business.

The rap mogul has joined California-based cannabis company Caliva as Chief Brand Strategist as part of a new multi-year partnership.

According to Rolling Stone, hip-hop’s first billionaire will help Caliva with creative decisions, outreach efforts, and strategy. He will also focus on social justice issues surrounding legalization, including “advocacy, job training, and overall employee and workforce development.”

“Anything I do, I want to do correctly and at the highest level,” JAY-Z said in a statement. “With all the potential in the cannabis industry, Caliva’s expertise and ethos make them the best partners for this endeavor. We want to create something amazing, have fun in the process, do good and bring people along the way.”

JAY-Z reached out to Caliva following an extensive search to find a partner in the cannabis industry.

“For JAY-Z to seek out Caliva as a partner is humbling and confirms our mission of being the most trusted name in cannabis,” said Caliva CEO, Dennis O’Malley. “To find that we were in complete alignment around our values and ethos was just a home run. We believe this partnership is unparalleled in this or any business and we could not be more pleased to be working with him and have him as our Chief Brand Strategist.”

JAY-Z is the latest rapper to invest in the marijuana business. Snoop Dogg launched his own weed brand, Leafs by Snoop, while 2 Chainz owns The Gas Cannabis Co. Additionally, Wiz Khalifa, Juicy J, Ty Dolla $ign, and Curren$y have all developed their own signature strains.