'Idol' sales: Phillips, Underwood, Clarkson

Phillip Phillips falls out of the Top 10 this week, as The World From the Side of the Moon drops from No. 8 to No. 16 on the Billboard 200 chart.

Kelly Clarkson, on the other hand, has a good week, as two compilations featuring her music enter the Billboard chart. the 2013 Grammy Nominees set, which includes Stronger (What Doesn't Kill You), makes its debut at No. 4, while Now That's What I Call...