The U.S. album chart is about to get more interesting with the release of the latest "Twilight" soundtrack next week, along with two other promising albums.

"The Twilight Saga: Eclipse" will be competing against Christina Aguilera's first album after almost four years and the most recent EP of Fox TV's "Glee".

Industry prognosticators predict that "Eclipse" will go straight to No. 1 on the Billboard 200 and sell as much as 140,000 to 160,000 copies by week's end on June 13. "New Moon" previously sold 115,000 copies in just three days after its Friday release, debuting at No. 2. During its first full week, it moved up to No. 1 as the sales increased to 153,000 copies.

Sources say that the "Glee" EP, "Journey to Regionals", might sell 110,000 to 130,000 copies. Christina Aguilera's "Bionic" might make 100,000 to 120,000 copies, which is a sharp decline from the sales of her 2006 album "Back to Basics" which had a 346,000-unit start.

The sales projections could change though, with high-profile TV appearances scheduled this week for Aguilera. She was at NBC's "Today" on Tuesday and will guest in "The Late Show With David Letterman" on Wednesday night, followed by "Live With Regis & Kelly" on Thursday and CBS' "Early Show" on Friday. Then on Sunday, she will be featured in the new episodes of VH1's "Behind The Music" and "Storytellers".

Meanwhile, other albums that may debut next week on the Billboard 200 include Plies' "Goon Affiliated", Dierks Bentley's "Up On The Ridge", Jewel's "Sweet and Wild", Saving Abel's "Miss America" and Grace Potter & the Nocturnal's self-titled album.