For years, Katey Day-Reick has been working at her day job to support her passion for music. Last week, she took the stage at the Dolby Theatre in Los Angeles to perform for Simon Cowell and the judges on America's Got Talent. This week, she's taken another step in her journey by giving up the day job to chase down her dreams. What advice does she have for following your heart? And what does she say about the upcoming show Canada's Got Talent?