Bieber tops One Direction on Billboard chart, but Adele on the horizon

By Piya Sinha-Roy LOS ANGELES (Reuters) - Canadian pop star Justin Bieber edged out British boy band One Direction in a battle to the top of the U.S. Billboard 200 album chart on Monday, but his reign will be short-lived as British singer Adele looks to break records with her new release. "Purpose," the fourth studio album by Bieber, sold 520,000 albums, 602,000 songs and was streamed 100 million times in its first week, totaling 649,000 units, according to figures from Nielsen SoundScan. It is