The Billboard Hot 100:
As previously reporte  d , Rihanna reigns atop the Billboard Hot 100 for a 10th week with "We Found Love," featuring Calvin Harris. The song becomes of one just 11 by lead female artists to rack at least 10 frames on top in the chart's history. Who else shines (like yellow diamonds ...) on this week's chart?
-- Kelly Clarkson: As radio support builds for "Stronger (What Doesn't Kill You)" -- it enters Hot 100 Airplay at No. 71 - sales primarily drive its 58-21 Hot 100 vault as the chart's Greatest Gainer/Digital. "Stronger" soars 44-11 on Hot Digital Songs with 118,000 downloads sold, up 124%, according to Nielsen SoundScan. The chart's tracking week encompasses the first full week following Clarkson's Jan. 7 "Saturday Night Live" performance.
-- Adele: As her current single "Set Fire to the Rain" surges 4-2 with Greatest Gainer/Airplay honors for a second week, "Rolling in the Deep," the first single from her album "21," remains on the Hot 100 for a 54th week (36-40). As "Deep" earned the title of Billboard's top Hot 100 song of 2011, the track passes Faith Hill's "Breathe" (53 weeks, 2000) for the longest residence on the Hot 100 ever for a No. 1 song of the year.
-- Train: The San Francisco band treats fans to a preview of its forthcoming sixth studio album, as its first single "Drive By" arrives as the Hot Shot Debut at No. 60. It motors in at No. 46 on Hot Digital Songs (44,000), while radio is ready from the start: it begins at No. 21 on Triple A and No. 29 on Adult Top 40.
-- Van Halen: "Tattoo," the Rock and Roll Hall of Fame band's reunion single with lead singer David Lee Roth (from its Feb. 7 album "A Different Kind of Truth," its first with Roth since "1984" 28 years ago), launches at No. 67 on the Hot 100, where it's the group's 23rd entry and first since 1995. The cut storms Hard Rock Digital Songs at No. 1 (34,000) and No. 16 on Rock Songs with 4.6 million first-week audience impressions, according to Nielsen BDS. The buzz of Van Halen's return renews interest in the group's classic "Jump," which re-enters Hard Rock Digital Songs at No. 11 (7,000, up 97%).
-- The Wanted: Following the British pop vocal quintet's Jan. 10 appearance on "The Ellen DeGeneres Show," sales for its "Glad You Came" swell by 244% to 23,000, propelling its No. 85 Hot 100 bow. The song concurrently starts at No. 37 on the Mainstream Top 40 airplay chart.
The Billboard 200:
Adeles "21" celebrated a 16th week at No. 1 on the Billboard 200 this week,  making it the longest-running chart-topper since the "Titanic" soundtrack sailed for 16 weeks in 1998. "21" moved 104,000 copies last week -- down 16% according to Nielsen SoundScan. One step below the penthouse was David Crowded Band's "Give Us Rest," which opened at a career-high No. 2 with 51,000. Curious about the movers and shakers on the rest of the chart? Read on:
-- Nightwish: The rock band has been kicking around since 1996, but its new "Imaginearum" is only their second album to reach the tally. It bows this week at No. 27 with 12,000 -- both the act's highest charting album and best sales week. Over on the Hard Rock Albums chart, it starts at No. 2, stuck behind Nickelback's "Here and Now" (which is in its eighth straight week at No. 1).
-- Steve Aoki: The club kingpin's first studio album "Wonderland" bows at No. 59 with 7,000 and claims his second top 10 (and biggest set) on Dance/Electronic Albums (No. 6). The album's "Livin' My Love" single -- which features LMFAO & Nervo -- also debuts at No. 28 on Dance/Electronic Digital Songs 8,000 downloads sold. "Wonderland" was exclusively available in the iTunes Store for its first week of release before going wide to all retailers on Jan. 17.
-- David Guetta: The sales of the DJ/producer's new album "Nothing But the Beat" now stand at 191,000 -- on the verge of surpassing the cumulative tally of his last set, "One Love." The latter has so far moved 206,000 to date. Meanwhile, "Nothing" secures its third top 20 Billboard Hot 100 hit as "Turn Me On," featuring Nicki Minaj, rushes 25-10. It's also the fourth overall top 10 hit for Guetta and the fifth for Minaj.
-- "The Descendants" - The Hawaii-set film's all-Hawaiian soundtrack (go figure!) spends its second week atop the World Albums tally (3,000; up 78%) and jumps onto the 200 for the first time. It enters at No. 176.