...Baby One More Nursery Rhyme. By Billboard Staff Hoo baby! Having trouble getting your kid to fall asleep? That’s what lullabies are for. People have been singing their babies to sleep for centuries ...

"Pick a song that you can stand to sing over and over, maybe for years," is advice that Elizabeth Wolf of Merrimac, Mass., gives new parents. "Doesn't matter how well you sing it. Over time that will ...