Kristen Anderson-Lopez And Robert Lopez, Christophe Beck

Born as Kristen Jane Anderson, she an American actress and songwriter.
Anderson-Lopez, along with her husband [a=Robert Lopez] and [a=Henry Jackman] wrote and produced music for the 2011 Disney film Winnie the Pooh, for which they were nominated an Annie Award for Best Music in a Feature Production. She also provided the voice of Kanga in the film. Additionally, she wrote songs for a Walt Disney World production of Finding Nemo - The Musical.
She and her husband also wrote the songs for Disney's Frozen.