John Mayer may have some legal headaches ahead of him. The singer is now being dragged in a lawsuit over a $100 million Ponzi scheme.

According to TMZ, Mayer's involvement is unclear, however, the Grammy-winner may be in possession of up to $465,000 in dirty money. The site outlines a Ponzi scheme that was taken down in early 2012, where Seattle fund manager Darren Berg orchestrated a plan that milked $140 million out of his investors.

Berg was sentenced to 18 years in prison for his crimes, and now a group of trustees are looking to recover the lost millions. In doing so, they found that Berg's company allegedly made payments of $465,000 to booking agent Grabow & Associates, which booked Mayer to play a private party for his employees.

Now the trustees are suing to get the money back. Mayer's lawyer told TMZ: "John Mayer performed at a corporate event in 2008 and was paid for his services. The opportunity was brought to John through his talent agency, CAA." A judge has not ruled on the case yet.

According to Reuters, Berg raised over $360 million from more than 1,000 investors, making his one of the largest Ponzi schemes of all time.