Weekly Chart Notes: Adele, Van Halen, Aretha Franklin

Adele's "21" becomes just the 20th album in the Billboard 200's five-decade-plus history to reign for at least 16 weeks

SWEET 16: As previously reported, Adele's "21" tops the Billboard 200 album chart for a 16th week, marking the survey's longest reign since the "Titanic" soundtrack also led for 16 frames in 1998.

Since the chart began appearing in each issue of Billboard magazine the week of March 24, 1956, just 20 albums have spent as many as 16 weeks at No. 1.

Here is a look at the elite albums boasting the longest Billboard 200 commands in that span (a list in which Vanilla Ice ranks back-to-back with Andy Williams).

Weeks at No. 1, Title, Artist, Peak Year

54, "West Side Story" soundtrack, 1962
The Leonard Bernstein/Stephen Sondheim songbook infuses the album that includes such standards as "America," "I Feel Pretty" and "Somewhere." (The figure of 54 weeks at No. 1 combines the set's time atop separate stereo and mono LP charts before the Billboard 200 became a singular ranking the week of Aug. 17, 1963).

37, "Thriller," Michael Jackson, 1983

The set that vaulted Jackson to everlasting superstar status became the first to yield seven Billboard Hot 100 top 10s. At 29-times Platinum, "Thriller" is tied with the Eagles' "Their Greatest Hits 1971-75" for the most certifications, according to the RIAA.

31, "Rumours," Fleetwood Mac, 1977
As "Wayne's World"'s Mike Myers (in character) once joked about the opus, "I think if you lived in the suburbs, they just issued it to you, man."

31, "South Pacific" soundtrack, 1958

31, "Calypso," Harry Belafonte, 1956

24, "Purple Rain," Prince and the Revolution/soundtrack, 1984

24, "Saturday Night Fever" soundtrack, 1978
A collection that defines the disco era, the soundtrack became the first of nine albums ever to generate four Hot 100 No. 1s: the Bee Gees' "How Deep Is Your Love," "Stayin' Alive" and "Night Fever" and the Bee Gees-penned Yvonne Elliman dance ballad "If I Can't Have You."

21, "Please Hammer Don't Hurt 'Em," M.C. Hammer, 1990

20, "The Bodyguard," Whitney Houston/soundtrack, 1992

20, "Blue Hawaii," Elvis Presley/soundtrack, 1961

18, "Ropin' the Wind," Garth Brooks, 1991
Brooks spearheaded country's early '90s popularity boom, thanks in part to this set that included the Country Songs No. 1 "The River" (which Scotty McCreery sang last year en route to his coronation on "American Idol"). With career U.S. album sales of 68.6 million, Brooks is the best-selling album artist dating to the 1991 advent of Nielsen SoundScan data.

18, "Dirty Dancing," soundtrack, 1987

18, "More of the Monkees," the Monkees, 1967

17, "Some Gave All," Billy Ray Cyrus, 1992
The album, which introduced the signature line-dancing anthem "Achy Breaky Heart," spent its last week at No. 1 the week of Oct. 3, 1992. A month later, Cyrus welcomed daughter Destiny Hope - aka, "Miley."

17, "Synchronicity," the Police, 1983

16, "21," Adele, 2011

Should "Set Fire to the Rain," which pushes 4-2 on the Hot 100 this week, reach No. 1 while "21" is atop the Billboard 200, the album would become the first to sport three Hot 100 toppers that reigned while their parent sets led the Billboard 200. "Rolling in the Deep" and "Someone Like You" previously dominated the Hot 100 while "21" ruled the album tally.

16, "Titanic" soundtrack, 1998

16, "To the Extreme," Vanilla Ice, 1990

16, "Days of Wine and Roses," Andy Williams, 1963

16, "The Sound of Music," original cast, 1960

A VERY GOOD YEAR (AND TWO WEEKS): As Adele's "21" logs a momentous 16th week atop the Billboard 200, the album's "Rolling in the Deep," the top Hot 100 title of 2011, makes its own headlines.

Dipping 36-40, "Deep" remains on the Hot 100 for a 54th week to become the longest-charting No. 1 song of any year. The song bests the 53-week Hot 100 residence of Faith Hill's "Breathe," Billboard's top single of 2000.