Mariah Carey's "E=MC2" holds at No. 1 on the Billboard 200 for a second week (down 61%) while Leona Lewis' "Spirit" stays firm at No. 2, earning a gain after her "American Idol" performance last week ... The Billboard 200 greets an eclectic group of debuts in its top 20, with new releases from comedy duo Flight of the Conchords, pop star Ashlee Simpson, indie hip-hop act Atmosphere, country singer Phil Vassar and rock band Story of the Year. In other debut news, indie pop duo the Weepies makes its Billboard 200 bow, Whitesnake returns with its first new studio album in more than a decade, rock act Tokyo Police Club starts strong with its latest, and British band Elbow also makes a splash.
