Country/folk-rocker Steve Earle [ tickets ] has piled another batch of dates onto his early-2005 schedule, and he's now scheduled to visit about 20 U.S. cities in January and February.

Country singer/songwriter Allison Moorer [ tickets ], who issued a new album titled "The Duel" in April, supports on all of Earle's currently confirmed January and February dates.

Earle--who picked up Grammy nominations this year for Best Solo Rock Performance and Best Contemporary Folk Album--continues to back his latest set, "The Revolution Starts ... Now," a collection that continues his penchant for mixing music and activism.

Three songs from the politically charged album--"F the CC," "Rich Man's War" and the title track--are streaming at Earle's official website.

Besides issuing the new album and touring extensively, Earle also debuted a weekly radio show this year--which goes by the same name as the album--on the left-leaning Air America radio network.

"Revolution" continues a prolific release schedule for Earle, coming on the heels of 2002's "Jerusalem," the 2002 outtakes package "Sidetracks" and 2003's double-live CD and DVD "Just an American Boy."