U2 bows atop the Billboard 200 with its seventh No. 1 album, "No Line on the Horizon," shifting 484,000 . . . That's the biggest sales week the chart has seen since December, when Britney Spears' "Circus" blew in with 505,000 . . . Neko Case makes a grand entrance on the chart, too, as her "Middle Cyclone" arrives at No. 3 -- her highest-charting album yet . . . In Progress Reports, we've got news on the latest top 10 hit for Rodney Atkins, the return of the Black Eyed Peas and Asher Roth's rising single "I Love College." [THIS COLUMN WAS UPDATED ON MARCH 11 AT 9:40 AM PST.]
