AND THE BEAT GOES ON: After the renowned Fred Bronson's 16-year run at the helm, and fellow music expert Paul Grein's 12-year stewardship before Fred, Chart Beat will continue to be a landmark feature on billboard.com. Please look for updates each week, reported by members of Billboard's charts department. We welcome you to interact by submitting your questions and comments about the charts, sales and the music industry in general at askbb@billboard.com.


U2 AND RICK ROSS, YOU TOO:
U2 debuts on the Billboard Hot 100 with "Magnificent." So does Rick Ross. U2's song arrives at No. 79, while Ross begins at No. 88. Though the names are the same, the songs are different compositions. How rare is it for two songs sharing a title, but composed by different writers, to post simultaneous bows? Such a double dip has occurred only twice since July 3, 1976, when Fleetwood Mac and D.J. Rogers each entered with singles titled "Say You Love Me."

Fleetwood Mac's "Say," written by Christine McVie, debuted at No. 74. Rogers' self-written "Say" started at No. 100.

On the chart dated Feb. 13, 1993, Mary J. Blige (No. 47) and Mick Jagger (No. 84) each debuted with songs titled "Sweet Thing." Chaka Khan co-authored Blige's song, and Jagger’s was self-written.

The last Hot 100 to feature two covers of the same song debuting simultaneously was dated June 21, 1997, when LeAnn Rimes (No. 89) and Trisha Yearwood (No. 91) each offered their versions of Diane Warren’s "How Do I Live."

Since 1976, sets of different compositions sharing titles came close to achieving U2 and Ross' feat, but just missed by debuting a week apart:

"Don't Be Cruel," 1988: July 23, Bobby Brown; July 30, Cheap Trick
"Real Love," 1992: Aug. 22, Slaughter; Aug. 29, Mary J. Blige
"Where Do We Go From Here," 1996: July 6, Deborah Cox; July 13, Vanessa Williams
"Karma," 2004: Nov. 20, Lloyd Banks Featuring Avant; Nov. 27, Alicia Keys

Interestingly, two additional pairs of titles share matching debut dates five years apart in 2003 and 2008. On the chart dated March 29, 2003, TLC bowed with "Damaged." Exactly five years later, on March 29, 2008, Danity Kane arrived with the same title. Likewise, "Addicted" by Simple Plan bowed June 28, 2003, and "Addicted" by Saving Abel opened June 28, 2008.


U2 PART 2:
The Irish rockers grab their seventh No. 1 album on the Billboard 200, as "No Line On the Horizon" debuts in the top slot. In the 53-year history of the chart, U2 is now tied with Led Zeppelin for third-most No. 1s by a group, trailing only the Beatles' 19 and the Rolling Stones' nine.

Here's a list of U2's No. 1 sets:

"The Joshua Tree" (1987, nine weeks at No. 1)
"Rattle and Hum" (1988, six weeks)
"Achtung Baby" (1991, one week)
"Zooropa" (1993, one week)
"Pop" (1997, one week)
"How to Dismantle an Atomic Bomb" (2004, one week)
"No Line on the Horizon" (2009, one week to date)

FLEETWOOD MAC PART 2: The Mick Fleetwood Blues Band featuring Rick Vito arrives at No. 4 on Top Blues Albums with the digital release of "Blue Again," granting the Fleetwood Mac drummer his first appearance on the chart. He graced the Billboard 200 once on his own, when his solo set "The Visitor" hit No. 43 in 1981. Expect "Blue Again" to grow in the coming weeks, once its physical version hits retail March 17.

Featured artist Vito was a member of Fleetwood Mac from 1987 until 1991, when he left for a solo career. His single "Desiree" debuted and peaked at No. 36 on the March 7, 1992, Mainstream Rock chart.

THE MORE THINGS 'CHANGE': Hank Williams' granddaughter Holly extends the legendary family's chart presence with her first chart ink on Hot Country Songs, as "Keep the Change" debuts at No. 56. Her iconic grandfather charted 42 songs from 1947 to 1989, and Holly's dad, Hank Williams Jr., has posted 107, his latest a featured appearance on Rehab's "The Bartender Song," which spent a week at No. 60 in January. Holly's brother, Hank III, charted in 2000-01 with "I Don't Know."

In a 62-year span on Hot Country Songs, the Williams family has been absent in only 14 calendar years. Nine of those lapsed between Hank Williams’ death in 1953 and Hank Williams Jr.’s chart debut in 1964.

HEY MR. DJ: Tony Okungbowa, the DJ for "The Ellen DeGeneres Show," makes his Billboard chart entrance this week as the mixmaster behind the "Total Dance 2009" set, which enters the Billboard 200 at No. 15.

DeGeneres herself has charted once, when her 1996 comedy set "Taste This" hit No. 30 on the Top Heatseekers album chart.

THIN IS IN AGAIN: With the debut of Thin Lizzy's "Still Dangerous: Live at the Tower Theater Philadelphia 1977" at No. 189, the band returns to the Billboard 200 for the first time in 25 years. The act last appeared when "Live and Dangerous" spent its third and final week on the chart dated Feb. 11, 1984. Of Thin Lizzy's 10 charted albums on the Billboard 200, its most successful remains its first, 1976's "Jailbreak," which reached No. 18.

GUEST STAR: It's not out of the ordinary for Mariah Carey to appear on the Billboard Hot 100. What is notable is when she does so in a featured role, as is the case this week, as the-Dream's "My Love," on which Carey guests, debuts at No. 82. The song marks Carey's 39th chart entry but only her second as a featured artist. She previously rode shotgun on Jadakiss' "U Make Me Wanna," which peaked at No. 21 in 2004.

Of Carey's 39 Hot 100 hits, 12 of those have been collaborations, with the Jadakiss and The-Dream appearances the only ones on which she has been specifically credited as a featured, not lead, act.

Here is a complete list of Carey’s shared credits on the Hot 100, with their exact chart billings:

"Endless Love," Luther Vandross & Mariah Carey
"One Sweet Day," Mariah Carey & Boyz II Men
"When You Believe," Whitney Houston & Mariah Carey
"Heartbreaker," Mariah Carey Featuring Jay-Z
"Thank God I Found You," Mariah Carey Featuring Joe & 98 Degrees
"Crybaby," Mariah Carey Featuring Snoop Dogg
"Loverboy," Mariah Carey Featuring Cameo
"I Know What You Want," Busta Rhymes & Mariah Carey Featuring the Flipmode Squad
"U Make Me Wanna," Jadakiss Featuring Mariah Carey
"Say Somethin'," Mariah Carey Featuring Snoop Dogg
"Migrate," Mariah Carey Featuring T-Pain
"My Love," The-Dream Featuring Mariah Carey

Additionally, Carey's recent turn on the 15-artist-strong charity single "Just Stand Up!" was credited to 'Artists Stand Up to Cancer.' That act's song is considered by Billboard its own entity (a la USA for Africa's "We Are the World") and thus does not count as an individual chart entry for each of the 15 artists involved.


CHART PUNS ARE TOO EASY WITH A SONG CALLED 'THE CLIMB':
Miley Cyrus collects the Billboard Hot 100's first top 10 debut this year, as "The Climb" blasts in at No. 6. The track, from the March 24 soundtrack to "Hannah Montana: The Movie," becomes Cyrus' highest-charting effort. She previously rose as high as No. 9 with "7 Things" last July.

Prior to this week, the year's top debut was a No. 17 start for Lil Wayne's "Prom Queen" on the chart dated Feb. 14. The Hot 100's last top 10 debut before "The Climb" belonged to Britney Spears' "Circus," which charged in at No. 3 on the tally dated Dec. 20.

LET'S GET IT STARTED: Previewing their June 9 album "The E.N.D.," the Black Eyed Peas return to the Mainstream Top 40 radio chart at No. 39 and Rhythmic at No. 34 with "Boom Boom Pow." The song is the group's first entry on each list in three years. Since, frontwoman Fergie sent six songs onto Mainstream Top 40 from her solo set "The Dutchess."

"Boom" is the Black Eyed Peas' 11th Mainstream Top 40 chart hit, lifting them into a tie with Nickelback for second-most entries among groups this decade. Backstreet Boys lead with 11 charted titles in the 2000s.

No matter its future chart fortunes, "Boom" has already secured its place in music history. It will always be the answer to the question, "What was the first song played on 'Now 92.3' in New York City?" WXRK-FM, the longtime rock radio station, flipped formats to mainstream top 40 Wednesday, March 11.


'DISCIPLINE' WHIPS BACK:
Your eyes aren't deceiving you. Janet's year-old album "Discipline" rebounds into the top 10 on the Top R&B/Hip-Hop Albums chart this week. The set re-entered the list at No. 66 on Feb. 28 and has advanced 33-19-10 in the subsequent three weeks. Her return to the top 10 could be considered somewhat of a dubious honor, as the album's steady gains over the past month have been most likely owed to the set being offered at clearance pricing at the now-closed Circuit City chain. Other albums on the charts saw unexpected gains over the past month, including a re-entry for Donna Summer's almost year-old "Crayons" at No. 160 on the Billboard 200 this week, as Circuit City cleaned off its stores' shelves and moved out any remaining stock.

It's likely that Jackson's album, along with any others affected by Circuit City's going-going-gone pricing, will take a tumble down the charts next week. Circuit City closed its doors on March 8, the final day of the Nielsen SoundScan tracking week reflected in this week's charts, dated March 21.

BRANDY BETTER WITH AGE: After posting one entry on Hot Dance Club Play until last year, 2004's No. 13-peaking "Talk About Our Love," Brandy makes it back-to-back No. 1s on the tally, as "Long Distance" rings up a 2-1 move. "Right Here (Departed)," the first single from the album "Human," topped the chart in December.

LONDON AND RENO: In 1972, Bread took "Everything I Own" to No. 3 on Adult Contemporary. This week, the song returns to the chart after 37 years, as Greg London's cover enters at No. 29. The versatile London is a favorite at Harrah's in Reno, where his acclaimed show "Iconman" features his impersonations of numerous stars (and starlets), from Amy Winehouse to ZZ Top.

LATIN LEADER: What's the best way to soften the blow of your song dropping from No. 1 on a Billboard chart? Replacing yourself at the summit, which is exactly what Luis Fonsi does on Latin Pop Airplay. The singer's "Aqui Estoy Yo" rises 2-1, dislodging his own "No Me Doy Por Vencido." The latter title led the list for a chart-record 28 weeks.

This is only the third time in the chart’s 14-year history that an artist has succeeded himself at the top of Latin Pop Airplay. Juanes' "Gotas De Agua Dulce" followed "Me Enamora" on the Feb. 23, 2008, chart, and Ricky Martin’s "Vuelve" gave way to "Perdido Sin Ti" Sept. 12, 1998.

38 SPECIAL: Darius Rucker claims back-to-back top 40 hits on the Billboard Hot 100 for the first time since 1996, when his band Hootie & the Blowfish completed a run of six consecutive top 40 tracks, its entire chart output. Rucker rises 42-38 with his current single, "It Won't Be Like This for Long," his follow-up to the No. 35-peaking "Don't Think I Don't Think About It."

Both titles have fared even better at their home format: "Don't Think" topped Hot Country Songs in September, while "It Won't" climbs 3-2 this week.

Here is a rundown of Rucker’s Hot 100 hits, with Hootie & the Blowfish and as a solo artist:

No. 10, "Hold My Hand," 1995
No. 9, "Let Her Cry," 1995
No. 6, "Only Wanna Be With You," 1995
No. 14, "Time," 1996
No. 13, "Old Man & Me (When I Get to Heaven)," 1996
No. 38, "Tucker's Town," 1996
No. 35, "Don't Think I Don't Think About It," 2008
No. 38, "It Won't Be Like This for Long," 2009