Despite a flood of seven new releases into the national top 10, Adele’s seemingly insuperable “21” held onto No. 1 on the U.S. album chart for an 18th nonconsecutive week.

The Brit thrush’s album shifted 116,000 copies in its 49th chart week, according to Nielsen SoundScan data for the week ended Jan. 29. It ties a longevity mark established by Garth Brooks’ “Ropin’ the Wind” in 1991.

If “21” can take two more weeks at the top, it will match the 20 weeks registered in 1992 by Whitney Houston’s soundtrack for “The Bodyguard,” the longest-running No. 1 album since SoundScan began tracking sales in 1991.

Adele’s closest competition was Tim McGraw’s “Emotional Traffic” (Curb), which bowed at No. 2 with 68,000 sold. New set, released following a protracted legal wrangle between McGraw and his label, is the country star’s first album to debut beneath the pinnacle since “Tim McGraw and the Dancehall Doctors” entered at No. 2 in 2002. All of McGraw’s albums save two have arrived at No. 1.

Metal unit Lamb of God’s “Resolution” (Epic) settles in at No. 3 behind a 52,000-unit stanza. Virginia-bred act’s “Wrath” climbed aboard at No. 2 in 2009.

Universal’s “2012 Grammy Nominees” package signs on at No. 4 with a 52,000-unit score. Annual pre-kudocast title includes nominated tracks by Katy Perry, Lady Gaga, Skrillex, Mumford & Sons and, of course, Adele.

Singer-songwriter Ingrid Michaelson’s “Human Again” (Mom & Pop) logs on at No. 5, scanning 40,000. The graduate of L.A.’s Hotel Café sees her highest debut to date; her 2009 collection “Everybody” peaked at No. 18.

“American Idol” vet Kellie Pickler’s “100 Proof” (BNA) signs in at No. 7 with 27,000 units moved out of the box. It’s a high-water mark for the country singer: Her two previous releases topped out at No. 9.

Seal’s “Soul 2” (Warner Bros.) enters at No. 8, trailing Pickler’s total by less than 400 units. A sequel to the No. 12 2008 release “Soul,” it’s the first top 10 album by the English singer – currently going through a highly publicized separation from supermodel spouse Heidi Klum – since the No. 4 set “Seal IV” in 2003.

Christian vocalist Kari Jobe’s “Where I Find You” (Sparrow) debuts at No. 10 with a 25,000-unit landing. Her self-titled 2009 album peaked at No. 63 early last year.

Holding over are Kidz Bop Kids’ “Kidz Bop 21” (No. 6, 33,000 sold, down 43%) and Drake’s “Take Care” (No. 9, 26,000, down 9%).

Divisive young diva Lana Del Rey’s “Born to Die” is the top candidate for a major chart entry next week.