21-year-old rapper B.o.B arrives atop the Billboard 200 with his debut set, "The Adventures of Bobby Ray," selling 84,000 copies in its first week, according to Nielsen SoundScan . . . It marks the first time a solo male artist has earned a No. 1 album on the chart with their debut release since 2006 . . . Also arriving in the top 10 this week are new efforts from Bullet for My Valentine, Melissa Etheridge and Miranda Cosgrove.
