For more than 14 years, best friends Betsy Reyes and Elisa Tallerico helped build the beauty team at MTV, styling some of the entertainment industry’s biggest names before they appeared on air. Betsy is a hair guru and Elisa is a master makeup artist. Eventually, Betsy and Elisa were leading the entire hair and makeup department at the network. Now, they’ve decided to start their own beauty company, BetsyElisa, Inc., to “bring the red carpet experience to the everyday woman.” BTC stopped by the duo’s Beauty Bar launch party—aptly timed during New York Fashion Week—and we were…