Taylor Michel Momsen is an American singer-songwriter, guitarist, model, and former actress. Prior to her retirement from acting, she portrayed the character of Cindy Lou Who in the film How the Grinch Stole Christmas (2000), Alexandra Anami in Spy Kids 2: The Island of Lost Dreams (2002), Molly in Underdog (2007), and Jenny Humphrey on The CW's teen drama series Gossip Girl (2007–2010; 2012). Momsen has been the frontwoman of the American rock band The Pretty Reckless since their inception in 2009.

Filmography

• 2017Double Dutchess: Seeing Double
• 2008Making Paranoid Park
• 2008Spy School — Madison Kramer
• Gossip Girl — Jenny Humphrey
• 2007Paranoid Park — Jennifer
• 2007Underdog — Molly
• 2006Saving Shiloh — Samantha Wallace
• 2002Hansel & Gretel — Gretel
• 2002Spy Kids 2: The Island of Lost Dreams — President's Daughter
• 2002We Were Soldiers — Daughter Julie Moore
• 2000How the Grinch Stole Christmas — Cindy Lou Who
• 2000The Prophet's Game — Honey Bee Swan
• Early Edition — Allie (uncredited)

Appearances as themselves (13)

• 2025The 99th Annual Macy's Thanksgiving Day Parade — Self - Performer
• 2023A Grammy Salute to The Beach Boys — Self
• 2021Long Live Rock... Celebrate the Chaos — Self
• 2018The Pretty Reckless - Live at the Los Angeles's iHeartRadio Theater 2016 — Self
• 2017The Pretty Reckless - Live in Las Vegas 2015 — Self
• 2015The Pretty Reckless - Rock in Rio (USA) 2015 — Herself
• 2011The Pretty Reckless - Live at Download Festival 2011 — Self
• BBC Radio 1's Live Lounge — Self
• Conan — Self - Musical Guest
• Elle Style Awards Turkiye — Self - Winner
• That Metal Show — Herself
• Jimmy Kimmel Live! — Self - Musical Guest
• The Making of Paranoid Park — Herself