Adele spends fourth week atop Billboard chart, earlier album sees boost

By Piya Sinha-Roy LOS ANGELES (Reuters) - British singer Adele extended her reign atop the weekly U.S. Billboard 200 album chart for a fourth consecutive week on Monday, and saw a resurgence in sales for her previous album as well. Adele's record-setting "25" album sold another 728,000 copies, 297,000 songs and was streamed 8.4 million times in the past week, totaling 825,000 units according to figures from Nielsen SoundScan. Adele's 2011 album "21," with which the singer swept six Grammy awards