Momsen was born in St. Louis, Missouri to Collette and Michael Momsen and lives in Potomac, Maryland. Her younger sister Sloane Momsen is also an actress.

She began acting professionally at age 3, with a national commercial for Shake 'N' Bake. Then she got a role in The Prophet's Game. In 2000 Taylor got the role of Cindy Lou Who in How the Grinch Stole Christmas. Two years later she got parts in two more motion pictures: Hansel & Gretel, in which she played Gretel, and Spy Kids 2: Island of Lost Dreams, in which she played Alexandra, the President's Read more...

Taylor Michel Momsen (born July 26, 1993) is an American child actress and model. She portrays the character Jenny Humphrey on the The CW television series Gossip Girl.