Question: little girl from how the grinch stole christmas?
Answer: Taylor Michel Momsen (born July 26, 1993) is an American singer, songwriter, model, and former actress. She is known for portraying the character of Jenny Humphrey on The CW's teen drama series Gossip Girl (2007–2012) and Cindy Lou Who in the film How the Grinch Stole Christmas (2000).