Nipsey Hussle released his mixtape Crenshaw earlier this week for free download. He also gave fans the option to purchase a physical copy for $100, and was surprised when one of those fans turned out to be Jay Z.

The Roc Nation mogul had his team contact Nipsey and purchase 100 signed copies of the album.

“They sent us $10,000, we sent out 100 CDs,” the L.A. rapper told MTV News. “I ain’t get the chance to holler at Jay, but through his people he made it clear that he respected everything, so I was just humbled by it. It felt like it was a good risk. It ended up working out.”

Not only did Jay Z buy 100 copies, Nipsey sold 1000 CDs in 24 hours online and at a pop-up store in L.A. If you do the math, that equals a whopping $100,000.

Crenshaw, which features Rick Ross, Dom Kennedy, James Fauntleroy, and Slim Thug, is available for free download and if you want to support Nipsey’s movement, you can still grab a physical copy for $100 on iamproud2pay.com.

Watch him talk about Jay Z’s $10,000 transaction below.