Rockers Linkin Park [ tickets ], one of the few major acts who have balked at making their music available via legal digital-download sites, have issued their catalog through the iTunes Music Store.

Besides selling individual tracks at 99 cents each, full albums are now available with exclusive digital booklets. The digital version of the Linkin Park albums "Meteora," "Hybrid Theory" and "Reanimation" include two bonus tracks, along with a track that is exclusive to albums sold on iTunes.

Linkin Park is currently at work on a new album with producer Rick Rubin.

Just as Jessica Simpson [ tickets ] was scheduled to start promoting her newly released album, "A Public Affair," she's been ordered to rest her voice.

Simpson's publicist, Rob Shuter, told the Associated Press theat Simpson became ill on Friday (8/25), and has been diagnosed with "a strain, a bruise on her vocal cord."

The singer hopes to be in shape to perform on NBC's "Today" show on Friday (9/1).

My Chemical Romance [ tickets ] has unveiled some details about their forthcoming new album, dubbed "The Black Parade," which is due in stores Oct. 24.

In a recent press conference, lead singer Gerard Way called the album "an epic, theatrical, orchestral, big record that is also a concept album. It has a very set story, but as you listen, the layers of that story peel away. What you're left with at the end is a story about mortality."

The band will debut the album's first single, "Welcome to the Black Parade," during Thursday's (8/31) MTV Video Music Awards pre-show.

Rapper DMX [ tickets ] proved a no-show for a planned weeklong tour to entertain troops in Kuwait and Iraq, and didn't offer an explanation, according to a press release issued recently by the USO.

The USO claims that the rapper, whose real name is Earl Simmons, was scheduled to head overseas on Aug. 22, but delayed his departure a day. He then failed to appear on time for his flight to Kuwait.

"We are extremely disappointed that DMX decided not to complete the tour he asked us to arrange for him," said USO spokesperson John Hanson. "When we announced this tour, troops were extremely excited about the possibility of seeing a performer they admired. We understand their disappointment.

Hanson added that, for DMX's convenience, the USO and military rushed to schedule DMX on short notice. "Typically, it takes up to 45 days to arrange transportation, housing, production assistance and country clearances for entertainment tours," Hanson said. "This tour was put together in just under two weeks, because we know how much service men and women appreciate his performances. Mr. Simmons let a lot of people down."