Rock legend Neil Young has teamed up with Bruce Springsteen, Eddie Vedder and Tom Petty to launch a campaign to raise funds for his new digital music service and player Pono.

Springsteen, Vedder, Petty, David Crosby, James Taylor and Sting are among the stars who have provided testimonials to support Young's new invention, which recreates the purest sound of the music - as heard in the studio during the recording process.

Launching the new campaign with a video message to music fans, Young says, "It’s about the people who make the music and the way it sounds to us when we’re in the studio making it. It’s about you hearing what we hear. And that hasn’t happened in a long time. I want to bring back real music. That’s why we’re on Kickstarter. So that everyone who loves music can share in the release of Pono and the launch of the real music experience in the 21st century."

The video also features testimonials by Beck, Jack White, Dave Grohl, Elvis Costello, Sir Elton John, Patti Smith, Kid Rock and members of Mumford & Sons.