1 year of '21': Dissecting Adele's chart run

Adele’s Grammy-sweeping blockbuster “21″ turns 1 this week, and is set to do so with its biggest sales frame to-date: The album is pacing to sell an amazing 650,000-680,000 copies this week, Billboard reports.

In an odd bit of cosmic coincidence, the album will celebrate its birthday with its title-tying 21st week at No. 1, which also gives it the most weeks at No. 1 of any album in the SoundScan era. Last week, “21″ tied the record held by — again, oddly, considering the timing — Whitney Houston’s soundtrack to “The Bodyguard.”

This week’s monster sales tally, which will push the album over the 7 million sales mark, is set to be the biggest of “21′s” titanic chart run; the album sold 352,000 copies its first week in stores, and scored its biggest sales week to-date when it sold 399,000 copies in the post-Christmas sales frame on the chart dated Jan. 7.

And “21″ shows no signs of slowing. The album is only on its third single — its first three singles all went to No. 1 — and a fourth single, “Rumor Has It,” is reportedly set to launch next month. And with few big releases on the horizon, “21″ will likely make its home at No. 1 on Billboard’s Top 200 albums chart for at least the next several weeks. (Its biggest competition looks like Bruce Springsteen’s “Wrecking Ball,” which hits stores March 6.)

Heading into “21′s” record-breaking week, here’s a look back at its phenomenal chart run so far.

Adele, “21″

• Released: Feb. 22, 2011
• First week sales: 352,000
• Debut week position: No. 1
• Weeks at No. 1: 20
• Weeks at No. 2: 14
• Weeks in Top 5: 50 (including a record 39 consecutive weeks)
• Lowest chart position: No. 7 (Dec. 10, 2011)
• Longest run at No. 1: 7 weeks (Jan. 14, 2012-present)
• Longest run not at No. 1: 10 weeks (Aug. 27, 2011-Oct. 29, 2011)
• Grammy wins: 6
• Total sales: 6.6 million
• Biggest sales week: 399,000 (Jan. 7, 2012)
• Lowest sales week: 73,000 (Aug. 27, 2011)
• Avg. sales per week: 130,000
• Weeks with more than 200,000 sales: 4
• Weeks with more than 100,000 sales: 36
• Albums with more weeks with more than 100,000 sales: 7 (Alanis Morissette’s “Jagged Little Pill,” with 64, has the most)
• Weeks its three singles spent at No. 1 on Billboard’s Hot 100: 14
• Weeks “Rolling in the Deep” spent at No. 1: 7 (5/21/11-7/2/11)
• Weeks “Someone Like You” spent at No. 1: 5 (9/17/11;  10/15/11-11/5/11)
• Weeks “Set Fire to the Rain” spent at No. 1: 2 (2/4/12-2/11/12)
• First album to knock it out of No. 1: Lupe Fiasco, “Lasers” (March 26, 2011)
• Other albums that spent more than 3 weeks at No. 1 during its chart run: 1 (Michael Buble’s “Christmas,” with 5)
• No. of “Now That’s What I Call Music” collections released during its chart run: 4
• No. of “Kidz Bop” collections released during its chart run: 2
• No. of Adele covers on those “Kidz Bop” collections: 2
• No. of “SNL” parodies about “Someone Like You”: 1