As lawsuits continue to be filed against illegal file-sharers, three major music labels housing artists including Green Day, Jessica Simpson and Ashanti have signed on to supply their music to a legal downloading service.

Warner Music (Green Day, Metallica, Flaming Lips), Sony BMG Music Entertainment (Beyoncé, Jennifer Lopez, System of a Down) and Universal Music Group (Black Eyed Peas, Eminem, Bon Jovi) have come to licensing agreements with the forthcoming Peer Impact network, the company announced on Wednesday (November 24). The fourth major label, EMI, has yet to sign on.

Peer Impact, scheduled to launch in the first quarter of 2005, will be a peer-to-peer legal digital file-sharing network. The service will also make sure that artists and rights-holders receive compensation for each file shared on the network.

The labels that have signed on to participate will allow Peer Impact's users access to their entire catalogs of music.

"Our goal is to populate Peer Impact with the greatest, and most diverse, collection of digital content anywhere," Greg Kerber, chairman and CEO of Wurld Media, the company developing the network, said in a statement.

"We're excited and proud to gain the cooperation of leading record labels," Kerber added, "and we look forward to concluding even more agreements in the coming weeks."

For complete digital music coverage, check out the Digital Music Reports.