Radio Chart Preview tease

YOUR CHART PREVIEW TEASE: There are new #1 records at Pop and Rhythm radio this week. You're probably far too, um, relaxed to care by now, but that's never stopped you before. So if you're not seeing double yet, take a gander at our Radio Chart Preview, which assesses the progress of Ariana Grande, Meghan Trainor, Katy Perry, Cage the Elephant, Jeremih, Hozier, Death From Above 1979 and more right here. (8/29p)