The Black Crowes [ tickets ] have tacked another set of dates onto their ongoing tour, extending the band's current outing--which initially kicked off early this spring--into November.

The group is finishing up a run of dates alongside Robert Randolph & The Family Band and Drive-By Truckers, and then will launch its next leg of solo shows Aug. 13 in Boulder, CO, a forerunner to some 15 shows to follow in September and October, closing with a Nov. 12 appearance at the motorcycle-friendly Love Ride charity event in Castaic, CA.

First up, though, is a Tuesday (8/1) appearance in Columbus, OH,. The Crowes will be supporting the Aug, 29 release of "The Lost Crowes," a two-disc set featuring previously unreleased material from the band's archives.

The set, due Aug. 29 from Rhino Records, includes tracks from two of the band's albums that were never officially released, 1993's "Tall" and 1997's "Band." The album is split into two CDs that attempt to reconstruct the original results of the two "lost" recording sessions.

The "Tall" CD was originally recorded in the fall of 1993 in a Los Angeles studio. The band decided not to release the material, and thereafter went to work on what would become The Black Crowes' third release, 1994's "Amorica." The Rhino re-release features 16 tracks from the "Tall" sessions, and 10 tracks from the 1997 "Band" sessions.

The group has remixed the original recordings included on the set, which will hit stores the same day as the band's first DVD for Rhino, "Who Killed That Bird Out on Your Window Sill," a repackaging of a home video originally shot by the band in 1992.

The DVD will feature live performances, interviews, backstage and studio footage, videos from the group's first two albums, and "additional bonus footage," according to a press release.