Members of the rock, R&B and acting worlds have joined forces to record a single that will benefit victims of the tsunami tragedy in Southeast Asia.

Brian McKnight, P.O.D.'s Sonny Sandoval, Mya, Nate Dogg and Papa Roach's Jacoby Shaddix have contributed solos to the original track "Forever in Our Hearts," which will aid the musician-helmed charity Music for Relief (see "Linkin Park Establish Charity To Help Tsunami Victims").

For the past two weeks, songwriter Jason Miller of Godhead and producer Jay Baumgardner (Papa Roach, Seether) have been recruiting celebrities and recording music for the track in North Hollywood, California.

"Rather than have the music track recorded by studio musicians," Miller said, "I wanted to get people from different bands to play on it as well as sing on it."

Instrumentals for "Forever in Our Hearts" were laid down by Jane's Addiction drummer Stephen Perkins, A Perfect Circle drummer Josh Freese, 311 bassist P-Nut, Papa Roach bassist Tobin Esperance, Trapt guitarist Simon Ormandy, singer Ben Jelen on piano and violin, and former Evanescence guitarist/songwriter Ben Moody.

"[Ben Moody and I were] working on his solo record together," Miller said. "Between the two of us, we know a lot of high-profile people, so we just decided to ask a few that we knew that we were close to. Then it just sort of steamrolled."

On Sunday, an army of actors including Eric Roberts and Ming-Na ("ER") and artists such as former Extreme members Nuno Bettencourt and Gary Cherone as well as members of Lit, Veruca Salt, Adema and Static-X gathered to record a sing-along of the chorus.

"I just want it to have the maximum amount of appeal as possible," said Miller, "the maximum amount of people so we can raise as much money as we can."

Miller also hopes to get three more high-profile artists to contribute solo vocals to the track, and a source close to the project said Avril Lavigne and Jon Bon Jovi have expressed interest.

When recording is completed, "Forever in Our Hearts" will be released exclusively to iTunes, while a video documenting the recording process will be circulated to TV outlets.

Photos and project details can be found at www.tsunamireliefsong.org.

For more information on the tsunami-relief efforts, see "Tsunami Relief: What You Can Do To Help."