They're the latest pop-ular snack-craze - chips that are popped. And they're being pitched by pop stars like Katy Perry ... Katy Perry "… poppin' those chips and we're shutting down fried." … and Bruno Mars. Bruno Mars "… I love the way you taste." The popped snacks are made of corn, rice, potato, chickpeas, or a mix of those. And then, rather than fried, most are heated and pressurized -- until they pop. "The clear message is that these popped snacks are more healthful. But we wondered if they really are." After "crunching" nutritional data for 12 different popped chips, Consumer Reports found, it's a "mixed bag." Most are less than 130 calories and four grams of fat per serving. But that's actually more than some healthier crunchy-snacks like Lay's Baked! Original Potato chips, which have about the same number of calories but half the fat. It's also more than Quaker Salt Free Rice Cakes, which have no fat and only 35 calories each. Amy Keating "But the skinny on fat is, it's all relative. Popped chips have less than half the fat of several other snacks we looked at, including Cheese Puffs, Doritos, Regular Lay's potato chips and even Wise Butter Air-popped Popcorn." Consumer Reports says try the Hummus popped snacks and you'll also get a bit more fiber than most others - three grams per serving. So if you're looking to join pop stars in their crunchy snack quest, popped chips might be your ticket. This is James Andrews ."