Janet Jackson [ tickets ] ends a nearly four-year dry spell with this week’s release of “All for You,” the follow-up album to 1997’s “Velvet Rope.” The title-track from the forthcoming album is currently No. 1 on the Billboard Hot 100 singles chart, and has occupied that slot for several weeks straight.

Streaming-audio samples of all of the songs on “All for You” (Virgin) are currently available on Jackson’s official website.

The singer’s upcoming promotional appearances include an online chat at MSN.com, scheduled for May 10 at 9 p.m. Eastern Time, and she is currently plotting a world tour that will kick off in July, according to her website.

Tim McGraw [ tickets ] delivers “Set This Circus Down” (Curb/Atlantic) this week, the follow-up to 1999’s “A Place in the Sun.” The new album features the track “Things Change”--a song that McGraw debuted live at this year’s Grammy Awards--and the first single, “Grown Men Don’t Cry.” The latter song is currently at No. 7 on Billboard’s Hot Country Singles & Tracks chart.

On Tuesday (4/24), McGraw is scheduled to perform two free shows to promote the release of "Set This Circus Down," according to a press release. The first performance is set to take place in New York at 12:30 p.m. at South Street Seaport. The singer then plans to head to Nashville for a 6 p.m. show in a tent near the intersection of 11th Ave. S. and 12th Ave.

“This Is Where I Came In” (Universal) is the latest offering from the Bee Gees. The Australian trio will mark the release of the new disc with a Tuesday (4/24) appearance on “Good Morning America.” The appearance will be taped at 11 a.m. Eastern Time on Monday (4/23) at the “Good Morning America” studios at 44th Street and Broadway in New York City, and the studio’s windows will be removed to allow fans outside to hear the group’s performance, according to the Bee Gees’ official fan club website.

The group is also scheduled to hold an online chat at GetMusic.com on Monday (4/23) at 8 p.m. Eastern Time, according to a press release.

Samples of nine of the 12 tracks on “This Is Where I Came In” can be found at the group’s fan club website as well.

The Bee Gees--brothers Barry, Maurice and Robin--are best known in the U.S. for their work on the 1977 “Saturday Night Fever” movie soundtrack. That album has shipped 15 million copies in the U.S., according to the Recording Industry Association of America.

The late British singer Kirsty MacColl released her fifth album, “Tropical Brainstorm” (V2), in Europe last year. This week, Instinct Records releases the album in the U.S., complete with new cover art and three bonus tracks not found on the original version.

In December, MacColl was killed when a motor boat struck her as she swam off the coast of Mexico while on vacation.

Philadelphia-based G. Love & Special Sauce serve up their fifth album, titled “The Electric Mile” (Epic).

"’The Electric Mile’ is a phrase we had before we ever had a song or an album to go with it," frontman G. Love said in a press release. "It's like a catch phrase for us doing what we want do without too much regard for people's expectations. ‘The Electric Mile’ is about statement."

The group kicks off a tour in support of the album on Tuesday (4/24), according to its official website.

“The Sneak Attack” surfaces this week, KRS-One’s first release of all new material since 1997's "I Got Next" (Jive). The album marks KRS-One’s first album for Koch Records.

KRS-One said in a press release that "The Sneak Attack" will "restore the focus of Hiphop Kulture. It will offer an alternative to the sometimes over-commercialized Rap product of today. I don't perform solely for money, I only rhyme when it is necessary, and it has become necessary."

Jive released a compilation album of the veteran rapper's previously released material titled "A Retrospective" last August.