LMFAO scores a second week atop the Billboard Hot 100 with "Sexy and I Know It." The confident duo's previous leader, "Party Rock Anthem," featuring Lauren Bennett and GoonRock, meanwhile, continues its lengthy residence in the chart's top 10.
 
"Sexy" remains in charge of the Hot 100 by logging a fifth week at No. 1 on the Digital Songs chart, selling 417,000 downloads (up 6%; its best sales week to-date), according to Nielsen SoundScan, over the Dec. 26-Jan. 1 sales tracking week.
 
"Sexy" stays at No. 3 on Radio Songs with 100 million in all-format audience (down 3%), according to Nielsen BDS.

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LMFAO additionally claims the Hot 100's No. 6 title, as former six-week No. 1 "Party Rock Anthem" rises 9-6 as the chart's top Digital Gainer (296,000; up 38%). The surge is typical, as months-old hits annually climb in sales in the week after Christmas, when consumers fill newly-unwrapped electronic music players with the year's top smashes.
 
"Anthem" registers its 28th week in the Hot 100's top tier, a total that only two titles have bested: LeAnn Rimes' "How Do I Live" (32 weeks, 1997-98) and Santana's "Smooth," featuring Rob Thomas (30, 1999-2000). Jewel's "You Were Meant for Me"/"Foolish Games" also racked 28 weeks in the top 10 in 1997-98 (as "Games" followed "Meant" to the top of Radio Songs in 1997).
 
Rihanna's "We Found Love," featuring Calvin Harris, remains at No. 2 on the Hot 100 after tallying eight weeks at No. 1. "Love" spends a seventh week atop Radio Songs (144 million, down 3%) while rebounding 3-2 on Digital Songs (319,000, up 16%).
 
Katy Perry's "The One That Got Away" holds at No. 3 on the Hot 100. The track is a non-mover at No. 4 on Radio Songs (99 million, down less than 1%) and dips 2-3 on Digital Songs, although up by 4% in weekly sales to 308,000. After the B.o.B-assisted remix of "One" accounted for 26% of the title's overall digital sales following its first week of retail availability, the remix's share dropped to 18% (57,000) in its second frame.
 
Bruno Mars' "It Will Rain" remains at No. 4 on the Hot 100 and Flo Rida's "Good Feeling" lifts 6-5.
 
Below LMFAO's "Anthem" at No. 6, Jay-Z and Kanye West's "Ni**as in Paris" drops 5-7.
 
Adele ranks back-to-back at Nos. 8 and 9 on the Hot 100, with current single "Set Fire to the Rain" and prior five-week topper "Someone Like You," respectively. "Rain" claims the Greatest Gainer tag on Pop Songs (16-14), while "Someone" benefits from adult contemporary stations having boxed holiday songs back up until next year and returned to non-seasonal programming; the song rebounds 12-1 on Adult Contemporary, having increased by more than 1,300 plays (up 828%).

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Adele's "Rolling in the Deep," Billboard's top song of 2011 after tallying seven weeks at No. 1, similarly benefits from renewed AC interest, as well as prominent placing on various radio stations' year-end countdowns. "Deep" revitalizes 35-30 on the Hot 100 with top Airplay Gainer honors, improving by 45% to 33 million in all-format audience.
 
Gym Class Heroes' "Stereo Hearts," featuring Maroon 5's Adam Levine, rounds out the Hot 100's top 10 (11-10).
 
 
Check billboard.com tomorrow (Jan. 5), when all rankings, including the Hot 100 in its entirety and the Digital Songs and Radio Songs charts, will be refreshed, as they are each Thursday.