OutKast keep shaking the chart like a Polaroid picture. For the third time in its 14 weeks of release, the duo's ''Speakerboxxx/The Love Below'' returned to the top of the Billboard album chart this week, selling another 374,000 copies, according to SoundScan, for a total of 3.1 million copies to date. Holiday shoppers also boosted sales of ''The Diary of Alicia Keys,'' which moved another 371,000 units, though OutKast edged Keys out of the No. 1 slot she enjoyed last week. Also down one spot each were No. 3 finisher Toby Keith, whose ''Shock'n Y'all'' sold another 314,000 discs, and fourth-place ''NOW That's What I Call Music! Vol. 14'' (302,000 sold). Up two notches was ''The Very Best of Sheryl Crow,'' which sold 256,000 copies for a fifth-place finish.
No new releases cracked the top 30 this week. Rounding out the top 10 were Josh Groban's ''Closer'' (sliding one slot to No. 6), Hilary Duff's ''Metamorphosis'' (also down one, to No. 7), No Doubt's ''The Singles 1992-2003'' (up one spot to No. 8), Ruben Studdard's ''Soulful (slipping one space to No. 9), and Britney Spears' ''In the Zone,'' climbing three rungs to finish in tenth place.