Beyonce sold close to half a million and got her third straight No. 1 debut on The Billboard 200 as the double-disc “I Am … Sasha Fierce” (Music World/Columbia) sold 482,000 copies in the United States, according to Nielsen SoundScan. Beyonce’s 2003 solo debut, “Dangerously in Love,” started with 317,000, while 2006’s “B-Day” moved 541,000.