Singer/songwriter Lucinda Williams [ tickets ] has lined up a mix of headlining dates and festival appearances that will keep her on the road for much of July and August.

Her itinerary also includes appearances at two Southern California shows billed as "Return to Sin City: A Tribute to Gram Parsons," in memory of the late country artist, who died more than 30 years ago. Others scheduled to perform at the July 9 and 10 shows are John Doe, Steve Earle, Eastmountainsouth, Kathleen Edwards, Jay Farrar, Jim James of My Morning Jacket, Norah Jones, Jim Lauderdale, Raul Malo and Dwight Yoakam.

Williams is touring behind her latest album, "World Without Tears," which has sold more than 350,000 copies since its release in April of 2003, according to Lost Highway Records. The set was produced by Mark Howard (Bob Dylan, U2), whom Williams credits with convincing her that her new batch of songs needed a raw, stripped-down sound.

"Everything was so spontaneous and emotional," she said in a statement. "We recorded the album in this huge 1920s mansion right in the middle of Los Angeles. We recorded the way a live band would record."

"World Without Tears" received a Grammy nomination for Best Contemporary Folk Album and its single "Righteously" was nominated for Best Female Rock Performance.

Backing Williams in the studio were Doug Pettibone (guitars), Jim Christie (drums, percussion, keyboards) and Taras Prodaniuk (bass). The same trio will join her on the tour.

Williams' 1998 album "Car Wheels on a Gravel Road" won a Grammy for Best Contemporary Folk Album. She followed it up with 2001's "Essence."