Wilco's Jeff Tweedy is the latest person in the public eye to

enter rehab for prescription painkillers.

The singer/guitarist entered a Chicago treatment center last week,

according to his spokesperson. As a result, Wilco's label, Nonesuch,

delayed the release of the band's fifth album, A Ghost Is Born,

by two weeks to accommodate his recovery. The follow-up to 2002's

Yankee Hotel Foxtrot has been rescheduled for a June 22 release.

Tweedy has a history of suffering from migraine headaches. A scene in

the 2002 Wilco documentary, "I Am Trying to Break Your Heart," shows

Tweedy vomiting after one particularly painful episode.

Although Tweedy was forced to nix a trip to Europe to do press for the

album (no performances had been scheduled), Wilco's U.S. dates, which

begin April 21 in Columbia, Missouri, are still a go. The eight

confirmed dates include a performance in New Orleans during Jazzfest

(April 23), the Coachella Valley Music & Arts Festival (May 1), and the

Bonnaroo Music Festival (June 11). A European tour scheduled for the

summer also remains unaffected. The only set date on that outing is May

28 in Barcelona.

The band recently added guitarist Nels Cline and keyboardist/guitarist

Pat Sansone to its touring lineup.

Tweedy's entrance into rehab comes just days after Kelly Osbourne

sought treatment for painkiller addiction (see [article id="1486155"]"Kelly Osbourne Checks

Into Rehab For Painkiller Addiction"[/article]).