Justin Timberlake at iHeartRadio Music Festival
Getty Images

This week on the Billboard 200 albums chart, Beyonce's new self-titled album ruled at No. 1 for a second week, as it sold 374,000 copies according to Nielsen SoundScan. That's down 39% from its debut frame, when it arrived on the chart with 617,000 -- from just three days of sales (in the week ending Dec. 15).

As usual, there were a number of movers and shakers outside the top 10 on the Billboard 200 this week. Let's take a look at some of them:

-- Justin Timberlake, "The 20/20 Experience (2 of 2)" - No. 19 - The album sports an 89% sales gain this week, vaulting from No. 27 to No. 19, following his guest turn on "Saturday Night Live" (Dec. 21). (The album owns the largest percentage gain in the top 20 this week.) On the show -- which also featured surprise guests Madonna and Paul McCartney -- Timberlake performed twice and appeared in numerous sketches. His first "20/20 Experience" album also sees a gain, as it flies 94-49 with 17,000 (up 94%).

-- Celine Dion, "Loved Me Back To Life" - No. 26 - The diva's latest album jumps 38-26 with a 72% sales gain thanks to a busy week of promotion. The set sold 28,000 copies in the wake of a performance on the season finale of NBC's "The Voice" (Dec. 17) and her hosting (and singing) duties on CBS' "A Home for the Holidays" special (Dec. 18).

-- Lady Gaga, "ARTPOP" - No. 34 -  Another performer that sees a gain thanks to "The Voice" (see Celine Dion, above) is Lady Gaga, who sees her "ARTPOP" set earn a 45% sales gain. On the show, Gaga sang her current single "Do What U Want" with "Voice" coach Christina Aguilera. "ARTPOP" sold 50,000 for the week.

Other "Voice" finale performers that see big gains this week: OneRepublic, Blake Shelton and Paramore. OneRepublic's "Native" rises 50-23 (28,000; up 107%), Shelton's "Based On a True Story" climbs 32-30 (25,000; up 39%) and Paramore's self-titled album re-enters at No. 139 (8,000; up 108%).

-- The Beatles, "The Beatles Bootleg Recordings 1963" - No. 172 - A few weeks after the Beatles and Capitol Records debuted its well-publicized album "On Air: Live at the BBC Volume 2," an under-the-radar box set arrives at No. 172.

"On Air" debuted at No. 7 on the Billboard 200 six weeks ago, and was ushered in with the traditional fan fare of a new Beatles release. Capitol's 59-track "Bootleg" box, however, isn't even mentioned on the Beatles' official web site. Nor has the Fab Four's Twitter account and Facebook page made mention of the set. That said, it debuts with 7,000 sold -- exclusively as a digital download.

Both releases are generally considered a way for the band to prevent the songs' copyright protection from lapsing in the European Union.

Previously unreleased recordings made in 1963 were due to see their protection expire on Jan. 1, 2014. Thus, if these songs hadn't been published by the end of 2013, they would have been effectively up for grabs in the public domain for anyone to sell.

On Nov. 1, the European Union implemented new rules regarding the copyright of sound recordings. Essentially, songs can now be protected by copyright for 70 years after they were first recorded, but only if they've been released. If something has not been released, then the copyright lasts for 50 years from its recording. (In the United States, the copyright term is 95 years.)

Thus, the Beatles -- and some other acts, like the Beach Boys and Bob Dylan -- have been issuing under-publicized compilations of previously unreleased material, in order to establish a publication date for 1963 recordings that were about to fall into the public domain.

Now, the songs on "On Air: Live at the BBC Volume 2" and "The Beatles Bootleg Recordings 1963" are protected by the EU's copyright law through 2033.

-- Soundtrack, "Austin & Ally: Turn It Up" - No. 89 - The second soundtrack from the hit Disney TV show "Austin & Ally" arrives with 13,000. The 13-track album features nine songs by Ross Lynch (who plays "Austin"), four tunes by Laura Marano ("Ally") and a track by pop duo Chloe & Halle. The first "Austin & Ally" soundtrack was released in September of 2012 and has sold 173,000 copies.