Oh, this breakup just got a whole lot more expensive! Looks like Sia is officially paying the price for peace in her ongoing split from estranged hubby Dan Bernad - and we mean that very literally. According to newly surfaced details published by TMZ on Monday afternoon, the chart-topping hitmaker has agreed to shell out a jaw-dropping $42,500 every single month in child support. Yes, you read that right. Every. Single. Month.