Singing superstars Christina Aguilera and Kelly Clarkson have a lot more in common being judges on The Voice.  They’re both incredible singers and mom’s to the sweetest kids but their little ones don’t want to hear them sing as much as their fans do.  You’d think their kiddies would be as excited to hear a free concert from mom, as the hundreds of people who pay to see them live would be but not quite!  Christina told Kelly on her new show, that every time she tries to sing sweet lullabies to her daughter, she tells mom “shhhh!  I’m trying to sleep!”  Kelly said the exact same thing happens with her kids!