Adele’s sophomore effort “21″ has once again captured the top position on Billboard 200 by out-selling its rivals in the music market. The 21-year-old soul singer’s rise to the prestigious chart’s summit is a bit out of the ordinary, since her album was released more than a year ago in February 2011.

The reason behind its unusual surge in sales is her recent appearance in NBC special “Adele Live in London.” The show boosted her and 21′s profile and so its sales also went up.

According to Nielsen SoundScan’s estimates, the album sold 75,000 copies last week and defeated Alan Jackson’s “Thirty Miles West” (73,000 units sold) for the top spot. Third spot on the list was taken by The Beach Boys’ “That’s Why God Made The Radio,” which moved 61,000 copies in its debut week.