Pop singer Ashlee Simpson [ tickets ], who earlier this week floated a handful of dates for her upcoming tour, has fleshed out more of the run.

Additions to the schedule include a number of November shows on the East Coast, as well as the tour's first stretch of December dates, most of which so far focus on the Midwest.

Tickets for many of the November concerts hit the box office on Friday (10/21) and Saturday (10/22). Details are included in the itinerary below.

As previously reported, Simpson's plans also encompass two late-October shows, including an Oct. 28 performance at the Stafford Centre in Stafford, TX, which is a make-up date for a Sept. 27 engagement that was canceled due to Hurricane Rita. Tickets for the original performance will be honored at the rescheduled show.

On Tuesday (10/18), Simpson issued her sophomore album, "I Am Me," which follows last year's "Autobiography." The new disc features the cut "Boyfriend," audio and video versions of which are streaming at Simpson's website.

Before launching her tour, Simpson will hype the new album with an appearance on Friday's (10/21) episode of "The Tonight Show with Jay Leno," and on Monday's (10/24) episode of "The Ellen Degeneres Show."

On Saturday (10/22), CNN is scheduled to air an interview with Simpson. The segment is slated to run multiple times throughout the day. More information is posted at Simpson's website.

Earlier this month, Simpson--younger sister of fellow pop-star Jessica Simpson--performed on "Saturday Night Live," marking her return to the program one year after an embarrassing lip-synching gaffe that saw her leave the stage in the midst of a live telecast when her pre-recorded vocals were piped through the speakers as she held her microphone at her waist.