Mandy Moore has already gone through several career phases in her young life, from teenage pop star to animated voice artist to dramatic actress. But her latest phase, as matriarch Rebecca Pearson on This Is Us, came after a long period in which she put her career on hold and lost her sense of self. Mandy explains to Marc what it meant to be emotionally locked into a relationship, how that tumultuous time was preceded by a stunning development in her family, and why she finally feels comfortable going back to making music. This episode is sponsored by Stamps.com and 23andMe.