Where are the Platinum Albums?

The three top albums of 2014 are everywhere. Every kid in the country is singing along to the soundtrack to the animated movie “Frozen.” There’s also Beyonce’s eponymous record and Lorde’s first album “Pure Heroine.” But there’s a problem: All three of those albums were released last year. No album released so far this year is on track to sell more than a million copies in the U.S. Why?