The Billboard 200:

-- Taylor Swift: The country diva's "Speak Now" continues to reign at No. 1 for a fourth non-consecutive week with 276,000 while Susan Boyle's "The Gift" stands still at No. 2, with 240,000 (down 6%). Elsewhere in the top 15, three new arrivals dot the tally from Jamie Foxx, Keyshia Cole and Keri Hilson.

-- "Glee": After just six weeks, the "Glee" cast's Christmas album (No. 3, up two spots, with 160,000; up 1%) has become the ensemble's second-best selling album (910,000) out of its eight releases. It stands behind only its "Volume One" album, with 1.1 million.

-- Kanye West & Nicki Minaj: Though the former's "My Beautiful Dark Twisted Fantasy" debuted at No. 1 ahead of Minaj's No. 2 bowing "Pink Friday" on the Dec. 11 chart (496,000 vs. 375,000), Minaj is about to eclipse West's total sales. "Pink" now stands at 791,000 while "Beautiful" is at 824,000. This week, "Beautiful" is at No. 19, selling 86,000 (up 29%), while "Pink" places at No. 8 with 133,000 (up 36%).

-- Daft Punk: With 189,000 sold of its "Tron: Legacy" soundtrack, it has swiftly become Daft Punk's best selling album since 2001's "Discovery" (694,000), surpassing sales of the duo's last studio set, 2005's "Human After All" (105,000) as well as a live release (2007's "Alive 2007" with 149,000) and a greatest hits package (2006's "Musique Vol. 1: 1993-2005" with 140,000). This week, "Tron: Legacy" moves up six rungs to No. 27 (70,000; up 47%).

-- Mariah Carey: Last week the singer performed on ABC's "Disney Parks Christmas Day Parade" special twice, singing "Oh Santa" (from her new album "Merry Christmas II You" at No. 30; down 12%) and "All I Want For Christmas Is You" (from "Merry Christmas," at No. 145; down 6%). Those declines aren't too shabby, as the volume of the top 50 titles on the Holiday Albums chart drops by 14% this week. So it would seem her Christmas Day promotion helped to curb the typical Christmas-week erosion that most holiday albums experience.

-- Ke$ha: Amazon MP3's sale pricing of her "Cannibal" set on Christmas day for only $3.99 lifts it by 63% in overall sales and 237% in downloads (re-entering at No. 15 on Digital Albums). It moves 54-39 on the Billboard 200, selling 47,000.

The Billboard Hot 100:

-- Bruno Mars: He posts consecutive No. 1 singles on the Billboard Hot 100 as "Grenade" jumps 2-1 to diffuse Katy Perry's three-week run at the top with "Firework" (1-2). Mars reigned for four weeks in October with "Just the Way You Are." "Grenade" shifts a near-record 559,000 downloads (up 212,000) in this holiday sales week, according to Nielsen SoundScan. The track tops Hot Digital Songs, a rung above "Firework," which moves 509,000 (up 165%). Those sums move "Grenade" and "Firework" into the Nos. 3 and 4 slots among the biggest single-week sales frames behind Flo Rida's "Right Round" (636,000) on the chart dated Feb 28, 2009 and Ke$ha's "TiK ToK," which sold 610,000 exactly a year ago this week.

-- Enrique Iglesias: With a 13-7 leap for "Tonight (I'm Lovin' You)," featuring Ludacris and DJ Frank E, Iglesias has now posted back-to-back top 10 English-language tracks for the first time in his career as the track follows "I Like It" (No. 4 peak in August) into the upper tier. When "Tonight" first debuted last month, it entered the list on the strength of first-week downloads, which at the time leaned heavily in favor of the explicit version "Tonight (I'm F*****' You)" by a ratio of 65% to 35%. Now with the song firmly entrenched at radio, the tamer version has overwhelmingly become the favorite, accounting for 85% of the title's 312,000 downloads.

-- The Lonely Island: The Hot 100's top debut belongs to comedy troupe the Lonely Island which enters at No. 30 with "I Just Had Sex," featuring Akon. The song was featured in a skit on the Dec. 18 episode of "Saturday Night Live" (Lonely Island includes "SNL" cast member Andy Samberg). In the succeeding week the track shifted 152,000 downloads, which easily tops the Comedy Digital Songs chart. At No. 2 on that sales tally is the Lonely Island's "I'm On a Boat" (16,000), which was the act's previous best Hot 100 showing, having peaked at No. 56 in June 2009.

-- B.o.B and Train: TV exposure accounts for two debuts on the list this week. B.o.B's "I Am the Champion," the centerpiece of ESPN's college football Bowl Week campaign, opens at No. 85 with 43,000 downloads while Train's "Shake Up Christmas," featured in this year's Coca-Cola holiday campaign, starts at No. 99 with 34,000.

-- Michael Jackson: In a week where most digital songs post triple-digit percentage increases, "Hold My Hand" by Michael Jackson featuring Akon improves by 29% to 65,000 while tumbling 24-53 on Hot Digital Songs. The song seems to have reached its peak at radio, topping out at No. 33 on Hot R&B/Hip-Hop Airplay three weeks ago, the same week it made its only appearance on Hot 100 Airplay at No. 73. Overall airplay this week is flat at 12.3 million listener impressions, according to Nielsen BDS.