This week, Dana is joined by founder of IT Cosmetics and New York Times bestselling author, Jamie Kern Lima to discuss how she started her now-billion-dollar company in her basement and how her authenticity helped it become one of the largest luxury beauty brands in the country. Later, Jamie explains why she wanted to write her book, Believe IT: How to Go From Underestimated to Unstoppable.   Keep up with Dana on Twitter: @DanaPerino