"Invincible" by Kelly Clarkson picks up its second HitPredictor this week, at Mainstream Top 40. It picked up the honor at Hot AC on May 18. And "Girl Crush" by Little Big Town earns its third HitPredictor this week. Country hits often take their time crossing to other formats, and this top-10 Country hit is a good example. It was a HItPredictor at Country last year, on Dec. 15. Almost six months later, on June 1, it won at Hot AC, and then this week it added Mainstream AC.