Taylor Momsen REACTS to Never-Before-Seen GRINCH Moments | ET Then & Now Taylor Momsen looks back on her days as Cindy Lou Who from ‘How The Grinch Stole Christmas’ with ET guest correspondent Emily Curl, watching back unseen interviews from the ET vault in this edition of ET’s Then & Now. The ‘Gossip Girl’ alum recently recorded a rock version of ‘Where Are You Christmas,’ which she sang in the film 25 years ago. It’s included on her new album, ‘Taylor Momsen’s Pretty Reckless Christmas,’ out now. Post navigation Simon Cowell’s Wedding | Comic Relief No Hard Feelings: Percy Meets Maddie | Full Romantic Comedy Movie Clip | Jennifer Lawrence | RMC