The Eagles are steadily progressing on their first studio album of all-new material since 1979's "The Long Run." Principal member Don Henley tells Billboard, "We're diligently working on it every day.

The Eagles are steadily progressing on their first studio album of all-new material since 1979's "The Long Run." Principal member Don Henley tells Billboard, "We're diligently working on it every day. If I had to speculate, I'd say it will come out early next year." No label is yet attached to the project (the group's last release, the live, mainly acoustic "Hell Freezes Over," was issued in 1994 by Geffen). "We might go independent -- it would be a combination of the Internet and certain superstore chains," Henley says.

"The Long Run" reached No. 1 on The Billboard 200 and spawned the No. 1 Billboard Hot 100 pop hit "Heartache Tonight," as well as the No. 8 hits "I Can't Tell You Why" and "Long Run." It has been certified for U.S. shipments of seven million units by the Recording Industry Association of America (RIAA).

The Eagles performed live last week in Los Angeles as part of the benefit concerts for the Recording Artists Coalition, of which Henley is a co-founder. As previously reported, Henley and Train will perform as part of Tiger Jam V, set for April 20 at the Mandalay Bay Events Center in Las Vegas. Presented by Coca-Cola, the annual benefit concert raises funds for the Tiger Woods Foundation and Las Vegas- and Los Angeles-based children's charities.

The Eagles' back catalog has also been in the news recently, thanks to a lawsuit filed by songwriters Jackson Browne, Jack Tempchin, and J.D. Souther over royalties from such hits as "Peaceful Easy Feeling" and "Take It Easy." The songwriters are seeking more than $10 million from Warner-Chappell Music Inc., claiming their royalty rate has been miscalculated.