Grammy winners slide back

The Grammy bounce didn’t last long for Ray Charles, Green Day and the rest. Having soared from No. 15 to No. 1 on the national pop sales chart last week after its victory in the Grammys, Charles’ “Genius Loves Company� fell to No. 2 on Wednesday with a 50% drop in sales.

Charles’ collection of duets, which was named album of the year, sold 224,000 copies the week after the Grammys, but only 110,000 copies last week. This drop allowed the solo debut album by Omarion, the former lead singer of the R&B; group B2K, to enter the charts at No. 1. The album, titled simply “O,� sold 182,000 in its first week.

Two other new releases also broke into the Top 10: Tori Amos’ “Beekeeper,� which entered at No. 5 after selling 83,000 copies in its first week, and “Kidz Bop 7,� the latest volume from the best-selling children’s music series. The CD finished No. 7, based on sales last week of 74,000 copies.

Green Day’s “American Idiot,� which won the Grammy for best rock album, dropped one position on the chart to No. 3 as sales of the punk trio’s CD also slipped nearly 50% last week, from 202,000 to 109,000. High-profile albums by other Grammy winners also dropped: Usher (No. 5 to No. 11), Maroon5 (No. 9 to No. 18), Alicia Keys (No. 11 to No. 28) and John Mayer (No. 19 to No. 33).

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By the Numbers: Southland CD rankings

Here are the 10 bestselling CDs in Southern California last week, along with their national ranking.

*--* TITLE, ARTIST NAT’L RANK LAST WEEK

1 “Omarion,� O 1 --

2 “American Idiot,� Green Day 3 1

3 “Genius Loves Company,� Ray Charles 2 2

4 “Documentary,� the Game 4 4

5 “Beekeeper,� Tori Amos 5 --

6 “Love.Angel.Music.Baby,� Gwen Stefani 15 6

7 “Hot Fuss,� Killers 12 9

8 “Get Lifted,� John Legend 6 11

9 “2005 Grammy Nominees,� various 13 3

10 “Breakaway,� Kelly Clarkson 10 13

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Source: Nielsen/SoundScan, Inc.