'NSYNC will defeat 'NSYNC once again on next week's chart — sort of.

The hits compilation Now That's What I Call Music! ... Vol. 7, which includes 'NSYNC's "This I Promise You," will knock the group's own Celebrity out of the #1 slot, one week after it debuted there on the Billboard 200 albums chart (see " 'NSYNC To Top Chart With 1.88 Million Celebritys Sold").

Music fans snatched up over 620,000 copies of the Now 7 compilation and 458,000 copies of Celebrity last week, according to SoundScan data released Wednesday (August 8). The 'NSYNC album had moved 1.88 million units in its first week.

Now 7 also includes Janet Jackson's "All for You," Eve and Gwen Stefani's "Let Me Blow Ya Mind," Britney Spears' "Don't Let Me Be the Last to Know" and other recent smashes.

Snoop Dogg's Tha Eastsidaz will have the week's second-highest debut, with Duces 'N Trayz: The Old Fashioned Way landing at #4.

Driven by the chart-topping single "Hit 'Em Up Style (Oops!)," pop/soul singer Blu Cantrell's first album, So Blu, will be close behind, landing at #8.

The "Rush Hour 2" soundtrack, boasting the Ludacris/Nate Dogg hit "Area Codes" and a new track from Keith Murray, will debut at #11, while Gangsta Boo's Both Worlds *69 will jump onto the chart at #29.

Critically acclaimed R&B singer/songwriter Bilal's 1st Born Second will debut at #31, Crystal Method's Tweekend will pop up at #32 and Tha Dogg Pound 2002 — a compilation from the rappers' former label, Death Row Records — will debut at #36.

As the Ja Rule remix of Jennifer Lopez's "I'm Real" continues to saturate the airwaves, J. Lo's J.Lo will hop from #17 to #12 — it was all the way down at #66 two weeks ago.

Aaliyah's self-titled LP will drop out of the top 10 in its third week of release, moving from #5 to #17, while Alien Ant Farm's Anthology will move in the opposite direction, from #27 to #18.

Teen pop won't be faring so well on the Billboard 200, with O-Town's self-titled debut dropping from #45 to #62, Mandy Moore's Mandy Moore slipping from #93 to #118 and Jessica Simpson's Irresistible skidding from #64 to #89.

The rest of the top 10 will be Alicia Keys' Songs in A Minor at #3, Staind's Break the Cycle at #5, D12's Devils Night at #6, Linkin Park's Hybrid Theory at #7, Destiny's Child's Survivor at #9 and P. Diddy's The Saga Continues ... at #10.