Photos of the Week: Adam Lambert, Susan Boyle, Whitney Houston, Bon Jovi

Singer Kelly Clarkson performs onstage at the 2009 American Music Awards at Nokia Theatre L.A. Live on November 22, 2009 in Los Angeles, California.

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Through the end of the year, Chart Beat is looking back at the biggest achievements on Billboard's charts in 2009 and throughout the past decade.

Tuesday, Dec. 15: Best of 2009, Part 1
Wednesday, Dec. 16: Best of 2009, Part 2

Tuesday, Dec. 22: Best of the 2000s, Part 1
Wednesday, Dec. 23: Best of the 2000s, Part 2

Tuesday, Dec. 29: 2009 By-the-Numbers
Wednesday, Dec. 30: 2000s By-the-Numbers

BEST OF 2009, PART 1

January

It required 22 weeks, but New York newcomer Lady Gaga reaches No. 1 on the Billboard Hot 100 with a 2-1 lift for "Just Dance" (Jan. 17). The song logs the longest trip to the top since Creed's "With Arms Wide Open" advanced to No. 1 in its 27th frame in November 2000 ...

Nickelback breaks the record for most No. 1s in the 13-year history of the Adult Pop Songs chart, as "Gotta Be Somebody" rises 2-1 (Jan. 24). The song is the group's fifth chart-topper, breaking a tie with Matchbox Twenty ...

Mainstream top 40 radio play pushes DJ Earworm's mash-up "United States of Pop" onto the Pop 100 Airplay chart at No. 70 (Jan. 24). "Pop" blends bits of 2008's top 25 year-end Hot 100 songs into a four-and-a-half-minute tune ...

Alan Jackson collects his 25th No. 1 on Country Songs, as "Country Boy" hikes 5-1 (Jan. 31). The track manages a feat that only 13 prior leaders have accomplished since the chart launched in 1944: it is the latest No. 1 to include the format's name in its title. The first? "Country Girl" by Faron Young in 1959 ...

Additionally on Country Songs (Jan. 31), "Cowgirls Don't Cry" by Brooks & Dunn, featuring Reba McEntire, gallops 13-9. The song marks McEntire's 56th top 10 dating to her first, "(You Lift Me) Up to Heaven," in 1980. With the newer track's rise, McEntire passes Dolly Parton, who collected her 55th top 10 in 2006, as the female artist with the most top 10s in the 65-year history of the survey.

February

Kelly Clarkson clocks the largest leap to No. 1 in the Hot 100's history, as "My Life Would Suck Without You" explodes 97-1 (Feb. 7). It's the second time Clarkson has set the record for largest jump to the top: her "American Idol" victory song, "A Moment Like This," soared 52-1 in October 2002. "My Life" passes the 96-1 surge of Britney Spears' "Womanizer" in October 2008 ...

U2 blasts to the first No. 1 debut on the Triple A adult alternative airplay chart since the list launched in 1996, as "Get On Your Boots" opens at the summit (Feb. 7). The cut is the act's record-extending 10th Triple A No. 1 ...

Bruce Springsteen
bows atop the Billboard 200 with "Working on a Dream," his ninth leader on the list (Feb. 14). He is now tied with the Rolling Stones for third-most No. 1 albums in the chart's archives. Only the Beatles, the leaders with 19, Jay-Z and Elvis Presley have visited the top slot more ...

Taylor Swift notches the first country crossover No. 1 in the Pop Songs chart's 16-year history, as former Country Songs No. 1 "Love Story" rises 3-1 (Feb. 28). Among country hits, "Story" had been tied for highest Pop Songs peak with Shania Twain's "You're Still the One" (No. 3, 1998) ...

More than 19 years after he first charted with "Back Where I Come From," Mac McAnally nets his first Country Songs No. 1 as a guest on Kenny Chesney's "Down the Road" (Feb. 28). The new song marks the longest stretch an artist has required to notch a first No. 1 at the format since (former Billboard employee) Jimmy Buffett, co-billed with Alan Jackson, celebrated his first leader, "It's Five O'Clock Somewhere," in 2003 after thirty years of charting.

March

After the film claimed eight Academy Award victories, including Best Picture, the soundtrack to "Slumdog Millionaire" blasts 22-4 on the Billboard 200 (March 14). The set's "Jai Ho! (You Are My Destiny)" by A R Rahman & the Pussycat Dolls charges 100-15 on the Hot 100 ...

Taylor Swift's "Fearless" logs its 11th week atop the Billboard 200 (March 14). The album extends the chart's longest reign this decade and is the lengthiest stay on top by a female artist since Alanis Morissette led for 12 weeks with "Jagged Little Pill" in 1995-96 ...

On Country Songs, Miley Cyrus debuts at No. 48 with "The Climb," while dad Billy Ray bows at No. 59 with "Back to Tennessee" (March 14). The last father and daughter to chart concurrently at the format with separate songs? On the chart dated Oct. 5, 1990, Rosanne Cash ranked at No. 53 with "What We Really Want," while Johnny Cash placed "Goin' By the Book" at No. 69 ...

U2 debuts on the Hot 100 with "Magnificent." So does Rick Ross (March 21). When was the last time that two songs sharing a title posted simultaneous bows? Feb. 13, 1993, when Mary J. Blige and Mick Jagger each arrived with compositions entitled "Sweet Thing" (which just happens to be the name of the current No. 1 on Country Songs, by Keith Urban) ...

Darius Rucker becomes the first male artist to send his first two Country Songs chart entries to the summit since Clay Walker 15 years ago, as "It Won't Be Like This for Long" ascends 2-1 (March 28). "Don't Think I Don't Think About It" led for two weeks in October. Rucker is just the third male artist to begin with back-to-back No. 1s on the tally in the last 20 years, joining Walker and Clint Black.

April

Stevie Wonder expands his span of Billboard chart-toppers to 45 years with a No. 1 opening for "Live at Last" on Top Music Video Sales. In the same week (April 4), "The Definitive Collection" debuts at No. 142 on the Billboard 200, marking Diana Ross & the Supremes' 37th charted set ...

Following last week's appearance as mentor and duet partner with Carrie Underwood on "American Idol," Randy Travis lands his first career top 10 on the Hot 100, as Underwood and Travis' pairing, "I Told You So," vaults 57-9 (April 4). Travis' previous best Hot 100 ranking was a No. 31 peak for "Three Wooden Crosses" in 2003 ...

She may have looked intense while bringing down the house with her live performance on "American Idol" this week, but Lady Gaga had ample reason to smile. She becomes the first artist in nearly ten years to reach the top of the Hot 100 with his or her first two chart entries, as "Poker Face" deals 2-1 (April 11). Lady Gaga first led for three weeks in January with "Just Dance." The last performer to launch with a pair of Hot 100 chart-toppers was Christina Aguilera in 1999-2000 ...

George Strait scores his record-padding 44th Country Songs No. 1, as "River of Love" rolls 3-1 (April 18). Strait assumed the mantle for most leaders when "Give It Away" became his 41st topper in 2006, passing the mark of 40 trips to the summit that Conway Twitty had held since 1986 ...

It's fairly common for an artist to top the Hot 100 as a solo act after reigning as part of a group. It's rarer that the order is reversed, but that's the case this week (April 18), as the Black Eyed Peas post their first leader with "Boom Boom Pow." Their first coronation follows vocalist Fergie's three No. 1s in 2006-07. In the chart's 50-year history, only two other groups have followed members to the summit: Genesis (1986) and Matchbox Twenty (2000).

May

Eminem earns the highest Hot 100 debut of his career, as "We Made You" enters at No. 9 (May 2). The song bests the rap superstar's previous top bow, a No. 12 launch for "You Don't Know," with 50 Cent, Lloyd Banks and Ca$his, in 2006 ...

Pet Shop Boys' "Yes" starts at No. 32 on the Billboard 200 (May 9), granting the U.K. duo its best rank since "Very" debuted and peaked at No. 20 on the Oct. 23, 1993, chart. The pair's history on the list dates to 1986, when "Please" bowed on April 19, eventually peaking at No. 7 ...

Bob Dylan needed to wait 30 years between his last two Billboard 200 chart-topping albums: 1976's "Desire" and 2006's "Modern Times." This week (May 16), he ends a gap of only two years and eight months, as "Together Through Life" starts at No. 1, becoming the Rock and Roll Hall of Fame legend's fifth topper ...

Twenty years ago this week (May 23), Paula Abdul moved into the Hot 100 penthouse with her second No. 1, "Forever Your Girl." Fast-forwarding to the present, only one artist on that chart dated May 20, 1989, appears this week: the evergreen Abdul, who bows at No. 87 with "I'm Just Here for the Music" ...

Why is Biz Markie's 1990 novelty hit "Just a Friend" on Digital Songs (May 23) for the first time? The charmingly off-key cut has found a new audience thanks to its inclusion in Heineken's latest TV spot. Another early '90s song that's been ubiquitous of late has yet to reach Digital Songs: Sir Mix-a-Lot's "Baby Got Back," which has been reworked for Burger King's inescapable current commercial. (We can't report on whether that song has helped sell the chain's hamburgers. Nielsen SoundScan tracks the sales of discs, but only if they're made of polycarbonate plastic, not meat.)

June

Eminem charges onto the Billboard 200 at No. 1 with "Relapse," his fifth consecutive chart-topping set (June 6). How rare is the feat of linking at least five straight No. 1s on the Billboard 200? In the chart's 53-year history, only six other artists have enjoyed such a run: the Beatles (eight), DMX, U2, Paul McCartney, Chicago and Elton John (five each) ...

In a week dominated by the "American Idol" season finale, another Fox TV-related show spurs the biggest splash on the Hot 100. Enjoying "Idol" as a lead-in, the new musical comedy "Glee" impacts the Hot 100 (June 6) as its cast blasts in at No. 4 with its cover of Journey's "Don't Stop Believin'." The song instantly tops the No. 9 peak of the original version in 1981 ...

"American Idol" also helps send Steve Martin back to the Billboard 200 for the first time since, coincidentally, 1981, as "The Crow: New Songs for the Five-String Banjo" debuts at No. 106 (June 13). Playing the banjo, Martin performed "Pretty Flowers" from the album on the season finale. Afterwards, when asked by host Ryan Seacrest to predict who would take home the "Idol" title, Martin quipped, "I know it's a long shot, but I hope I do" ...

A veteran of the list since Dec. 3, 1977, Elvis Costello posts his third-highest-charting set among his 29 career entries on the Billboard 200 (June 20). "Secret, Profane & Sugarcane" opens at No. 13, a ranking bested only by his "Armed Forces" (No. 10) in 1979 and "Get Happy!!" (No. 11) in 1980 ...

The Black Eyed Peas' fifth studio album, "The E.N.D.," becomes its first No. 1, arriving in the penthouse on the Billboard 200 (June 27). The placing eclipses the No. 2 peak of the group's last release, 2005's "Monkey Business." "Elephunk" rose to No. 14 in 2003, while, prior to the addition of vocalist Fergie, "Behind the Front" reached at No. 129 in 1998 and "Bridging the Gap" peaked at No. 67 in 2000.

On June 25, the world mourned the King of Pop, Michael Jackson. In the second part of Chart Beat's recap of 2009, we examine the resounding impact of Jackon's passing on various Billboard charts, as well as historic feats on Billboard tallies from July through December by the Black Eyed Peas, Jason Mraz and more.