Kelly Clarkson keeps her Hot AC No. 1

Kelly Clarkson, who performs in a couple medleys and sings What Doesn't Kill You (Stronger) on VH1 DIVAS Celebrates Soul airing tonight (9 p.m. ET/PT, VH1), retains the top spot on this week's American Idol airplay chart with Mr. Know It All. That single also continues to top USA TODAY's Hot AC airplay chart.

The rest of the Idol airplay Top 10 has a vaguely nostalgic feel to it, with tracks from...