HITS Daily Double

Pop Mart tease

POPULAR MUSIC, AS VIEWED BY THE UNPOPULAR: Justin Timberlake nabs #1, Iggy Azalea is Greatest Gainer, 5 Seconds of Summer prepares to close out the panel and Michael Jackson hits the ground running. There's a lot more to report from the world of Pop radio, and you'll find it in the latest installment of Pop Mart—the column that pairs beautifully with any inexpensive liquor. (5/28p)