Playing Liz Lemon’s impossibly cute assistant Cerie on 30 Rock, Katrina Bowden won over the hearts of both her on-screen coworkers and TV fans across the country. This winter she’s back at it with Tina Fey, Alec Baldwin, Tracy Morgan, and company, but the New Jersey native is also storming the big screen in American Reunion, Piranha 3DD, and Nurse 3D. How does the 23-year-old manage it? Here’s a hint: pole dancing, kick boxing, and Britney Spears.