Looking at today’s version of Taylor Momsen, it’s hard to fathom that she is the product of a Middle-American, Roman Catholic family. On second thought, it makes perfect sense. Her very public rebellion may be a direct result of her religious upbringing, but then again, we’re just speculating. After all, Momsen probably didn’t have much time for Bible studies, what with her burgeoning acting career and all. At just 3 years old, baby Momsen starred in a national commercial for Shake'n Bake. At 7, she starred in The Prophet’s Game and at 8 she beat out little girls everywhere to land the role of Cindy Lou Who opposite Jim Carrey in Ron Howard’s How The Grinch Stole Christmas.