Adele's 21 will easily score another week at #1, her 22nd, with an estimated total now close to 300k.

That would send the album up to 7.6 million over the course of its year in the marketplace, and makes it the favorite to finish as the top-sellng album for two years in a row, a first for the Soundscan era.

Of course, we'll have a better idea tomorrow for the midweeks, as well as a read on Whitney Houston titles now that physical retail has received stock. Here are this week's key debuts, based on one-day sales reports from those online and offline retailers who haven't closed up shop and set up Rick Santorum campaign headquarters:

Young Money/Cash Money/Universal Republic rapper Tyga's sophomore album, Careless World: Rise of the Last King, should do 70-80k, which is all digital sales, since the physical copy of the album was pulled due to an uncleared sample from Martin Luther King's "I Have a Dream" speech. Tyga is an acronym which stands for "Thank You God Always" for the prolific mixtape artist of Vietnamese-Jamaican origin, whose real name is Michael Ray Nguyen-Stevenson and whose previous album, 2008's No Introduction, was on the Decaydance label.

Fueled by Ramen/Atlantic N.Y.-based indie pop-rockers fun.'s sophomore album, Some Nights, is set for 50-60k in first-week sales, thanks to the smash single, "We Are Young" featuring Janelle Monae, which gained momentum from its use in a widely seen Chevy Sonic "Stunt Anthem" Super Bowl spot. The song was also covered in a Glee episode last December.

Virgin/EMI Philly alterna-hip-hop band Chiddy Bang's debut, Breakfast, featuring samples from the likes of Radiohead, Sufjan Stevens, Passion Pit and MGMT, is on target for between 30-35k in sales.

Mom + Pop/RED noise-pop trio Sleigh Bells' Reign of Terror, their sophomore effort, is slated for 25-30k, no doubt boosted by last weekend's Saturday Night Live performance.

Hear Music/Concord's traditional Irish band and six-time Grammy winners The Chieftains mark their 40th anniversary with Voice of Ages, which is slated for 15-18k. The album features collaborations with new artists like The Civil Wars, Bon Iver, Carolina Chocolate Drops, the Decemberists, Pistol Annies, the Low Anthem, Punch Brothers, Imelda May and Lisa Hannigan.

Album sales were up 13% vs. last week, up 7% vs. the same week last year and up 4% year to date.

Track sales were up 12% vs. last week, up 12% vs. the same week last year and up 7% year to date.

TEA (Track Equivalent Album) sales were up 13% vs. last week, up 9% vs. same week last year and up 5% year to date.