Katy Perry's "Roar" was a triple HitPredictor last week, at Top 40, Hot AC and Mainstream AC. This week, she makes it an even four, as she adds a HitPredictor at Rhythmic. And Drake sets a new record by scoring two HitPredictors in two consecutive weeks at the same format. Last week, Drake's "Hold On" was a double HitPredictor, at Rhythmic and Urban. While that track is the #1 gainer at Urban radio this week, a second Drake track, "All Me," is an Urban HitPredictor.