Ludacris lands his fourth No. 1 album on the Billboard 200 as "Battle of the Sexes" debuts atop the list with 137,000 . . . It's the first rap album to reach No. 1 in nearly six months . . . the last was Jay-Z's "The Blueprint 3" back in early October . . . The top 10 also welcomes new entries from Gorillaz, Jimi Hendrix and Broken Bells . . . Last week's No. 1, Lady Antebellum's "Need You Now," slips to No. 3.