Alicia Keys extends her chart-topping legacy this week, notching her third consecutive No. 1 bow on The Billboard 200. With first-week U.S. sales of 196,000 copies, according to Nielsen SoundScan, "Unplugged" (J Records) arrives ahead of last week's No. 1, Nickelback's "All the Right Reasons," as well as new offerings from Gary Allan and Ricky Martin.