Lisa Marie Presley [ tickets ], who last month released her debut album, backs the set with a spring and summer road trip, during which she'll open a number of dates for Chris Isaak [ tickets ].

Presley's outing begins with a series of radio-festival appearances in May, as well as a May 22 performance in Las Vegas during the taping of VH1's "Divas Duets" special. VH1 plans to air the program on June 1.

Presley will also turn up on the tube during her June 20 performance in New York City on NBC's "The Today Show," part of the program's summer concert series.

The television appearances are the latest in a string of many that Presley has made to help launch her first album, "To Whom It May Concern." So far this month, she has shown up on "mtvICON: Metallica," CNN's "Larry King Live" and "The Tonight Show with Jay Leno."

Last month, she appeared on ABC's "Prime Time" for an interview with Diane Sawyer, and on "The Late Show with David Letterman."

The media blitzkrieg helped "To Whom It May Concern" sell more than 140,000 copies during its first week out, earning the set a No. 5 debut on the Billboard 200 album chart.

Presley's website features streaming samples of the "To Whom It May Concern" tracks "S.O.B.," "Lights Out" and "Nobody Noticed It," as well as a streaming version of the "Lights Out" music video.