Josh Groban is showing celebs how to do Broadway

Stars, take notice: Josh Groban is doing Broadway right. In the magical new musical “Natasha, Pierre & the Great Comet of 1812,” which opened Monday, the singer is top-billed. But from his humility, you’d never guess Groban is a multiplatinum recording artist with millions of fans. There’s no ego on display here, only skill. In...