Jay-Z is behind a new venture fund called Marcy Venture Partners that is being launched with Walden Venture Capital managing director Larry Marcus and longtime business partner Roc Nation president Jay Brown, according to California regulatory filings.

The fund was first reported by Axios. In the past Jay-Z has invested in Uber’s Series B round in 2011 when the company had a pre-money valuation of $300 million. Jay-Z has also invested in JetSmarter and Julep. Roc Nation also backed Promise, a decarceration startup.

Jay-Z and Jay Brown were looking for a Silicon Valley partner for their fund last year. And at one time, it appeared they had landed on Sherpa Capital, a VC firm created by some of Uber’s other early investors. But that deal fell apart.

Now Walden Venture Capital’s Marcus will lead Marcy Venture Partners. Marcus has deep experience as an investor as an early backer of Pandora and Netflix. Marcus has also invested in sound and voice search startup SoundHound, retail tech company Skip and Terayon, which was acquired by Motorola.