Which TV Network aired Gossip Girl which starred Taylor Momsen as Jennifer Tallulah "Jenny"Humphrey?
Taylor Momsen:  She is also known for portraying the character of Jenny Humphrey on the CW teen drama series "Gossip Girl" (2007–2012) and Cindy Lou Who in the film "Dr. Seuss' How the Grinch Stole Christmas" (2000).
i don't know