Trey Songz has a double HitPredictor this week, at Rhythmic and Urban, with his new single, "Na Na," from an upcoming album. Ellie Goulding scores her second HitPredictor this week for "Burn," at Hot AC. It was a HitPredictor at Top 40 on Sept. 30, before it charted, and it's now a top 5 hit. And Pitbull nabs his fourth HitPredictor this week for "Timber," at Mainstream AC. It's #1 this week at Top 40, and has been a HitPredictor at Top 40, Rhythmic and Hot AC.