'ANIMAL' KINGDOM: And Ke$ha  thought she had reason to party before.
As previously reported , the 22-year-old leads the Billboard Hot 100 for a fourth week with her debut smash "TiK ToK," while her introductory album, "Animal," roars onto the Billboard 200 at No. 1.
Ke$ha is the first female artist to conquer both surveys with her first entry on each list since Leona Lewis, whose "Bleeding Love" began a four-week reign on the Hot 100 dated April 5, 2008, and "Spirit" opened atop the Billboard 200 three frames later.
How rare an honor is it for a rookie female artist to crown each chart out-of-the-gate? Ke$ha is just the 12th woman to begin with such a two-fold set of chart-toppers in the more than 50-year histories of the Billboard 200 and Hot 100.
Here is a look at the select female artists to send their first chart entries (credited with a lead billing) on each tally to No. 1. Half the members of the exclusive club have joined since 2000:
The Singing Nun  (1963)
"The Singing Nun," "Dominique"
Tiffany  (1987-88)
"Tiffany," "I Think We're Alone Now"
Mariah Carey  (1990)
"Mariah Carey," "Vision of Love"
Lauryn Hill  (1998)
"The Miseducation of Lauryn Hill," "Doo Wop (That Thing)"
Britney Spears  (1999)
"...Baby One More Time," "...Baby One More Time"
Christina Aguilera  (1999)
"Christina Aguilera," "Genie in a Bottle"
Alicia Keys  (2001)
"Songs in A Minor" "Fallin' "
Ashanti  (2002)
Kelly Clarkson  (2002-03)
"Thankful," "A Moment Like This"
Beyonce  (2003)
"Dangerously in Love," "Crazy in Love"
Leona Lewis  (2008)
"Spirit," "Bleeding Love"
"TiK ToK," "Animal"
MOTHER'S PRIDE: Ke$ha's Hot 100 highlights extend past her occupation of the penthouse.
Three additional cuts from "Animal" claw their way to debuts: "Blah Blah Blah," featuring 3OH!3  (No. 7), "Your Love Is My Drug" (No. 27) and "Take It Off" (No. 85). The highest of her new entries launches on Digital Songs at No. 2, below "TiK ToK," making Ke$ha the first artist to monopolize the top two spots in the chart's weekly archives.
(The Hot 100 bow of "Blah Blah Blah" additionally matches 3OH!3's best ranking. The act's "Don't Trust Me" peaked at No. 7 in May).
What's most noteworthy about "Your Love Is My Drug" is one of its co-writers: Pebe Sebert. AKA, the mother of Ke$ha (Sebert).
Billboard associate chart production manager Alex Vitoulis points out that the Nashville-raised Ke$ha inherited the singer-songwriter gene from her mother, whose songs have been recorded by such country icons as Johnny Cash , Merle Haggard  and Dolly Parton .
What was it like growing up with a maternal figure who put the "rock" in "rock-a-bye-baby"? Ke$ha says that , when on stage, her mother would place her infant daughter in her guitar case while she sang, "so I wouldn't roll off."
HIGHLY-'RATED': Rihanna  makes it look easy, as "Hard," featuring Lil Jeezy, vaults 15-9 on the Hot 100. The track matches the November peak of "Russian Roulette," the first single from Rihanna's fourth album, "Rated R."
"Hard" is Rihanna's lucky 13th Hot 100 top 10. Her debut entry, "Pon De Replay," peaked at No. 2 on the chart dated July 30, 2005.
With a baker's dozen, Rihanna ties Beyonce for most Hot 100 top 10s among female artists since 2000.
'REPLAY' FOR THE FIRST TIME: After reaching a high point to date of No. 2 on the Hot 100, Iyaz 's debut hit "Replay" bounds to the top of the Rhythmic radio airplay chart (viewable at billboard.biz ).
Billboard R&B chart manager Raphael George notes that in the past five years, 13 introductory chart entries by solo males or male-led groups have reigned on Rhythmic. In that span, only one female has managed the feat: Cassie , whose "Me & U" ascended to No. 1 in July 2006.
(As "Replay" is a release on the venerable Reprise record label, chart-watchers are encouraged to name any other songs whose titles are essentially synonymous with their labels. If only Augustana 's "Boston," an Epic Records single, had been released on Capitol ...)
CHART FIT FOR A KING: Elvis Presley  fans commemorated what would have been the King's 75th birthday Jan. 8 with a new souvenir: the hits collection "Elvis 75" debuts on the Billboard 200 at No. 47.
The set marks the highest-charting non-holiday album credited to Elvis since the TV soundtrack "Elvis By the Presleys" reached No. 15 in 2005.
The new album is one of three by Presley scaling this week's Billboard 200. The Starbucks-exclusive compilation "Boy From Tupelo" vaults 122-92 in its second week, and the 2002 No. 1 "Elv1s: 30 #1 Hits" re-enters at No. 158.
CHART BEAT BITS: As "American Idol" reclaims its throne atop the Nielsen TV ratings , former contestant Katharine McPhee  debuts on the Billboard 200 at No. 27 with "Unbroken." The 2006 runner-up's self-titled debut album reached No. 2 in 2007 ...
Fervent football fan Kenny Chesney  touches down on Country Songs, as "This Is Our Moment" debuts at No. 50. The rousing track has served as the theme to ABC and ESPN's recent college football coverage, including the BCS National Championship Game Jan. 7 ...
The star-studded digital-exclusive "One Percent for the Planet: the Music Vol. 1" bows on Folk Albums at No. 3. Proceeds from the 41-track release, featuring established names (Jackson Browne , Jack Johnson ) and promising newcomers (Mojave , Slow Runner ), benefit non-profit environmental organizations worldwide ...
Just a taste of the major-label debut album from Kansas City pop/rock band Vedera  clearly wasn't enough for its quickly-mounting fanbase. After the act's song "Satisfy" was highlighted as a free download in the iTunes Store last week, its "Stages" set re-enters Heatseekers Albums at No. 2. The Epic Records collection spent a prior week on the survey, at No. 5, in October ...
Music fans are mourning the loss of an R&B legend , as Teddy Pendergrass passed away (Jan. 13) at age 59. The singer was a stalwart on Billboard's pop and R&B charts in the '70s and '80s and will also be remembered for his help in introducing one of the most successful artists in music history: on the June 9, 1984, Hot 100, Pendergrass debuted with "Hold Me." The song marked the first chart entry for its then-rookie featured artist, Whitney Houston . "To all his fans who loved his music, thank you," the singer's son, Teddy Pendergrass II, said. "He will live on through his music."
- Chart Beat