Olivia Olson Video | Celebrity Interview and Paparazzi

Olivia Margot Renee Olson (born May 21, 1992(1992-05-21)) is a US actress and singer-songwriter known for her role as Joanna singing "All I Want For Christmas Is You" in Love Actually (2003) and for her voice roles as Vanessa Doofenshmirtz in Phineas and Ferb and Marceline the Vampire Queen in Adventure Time with Finn and Jake. Olson was adopted at birth and raised in Los Angeles, California. She lives with her mother, brother, and father. Her father is comedy writer Martin Olson. She has appeared as a singer and actress on television shows and in live theatre, including Comedy Central... MORE

Olivia Margot Renee Olson (born May 21, 1992(1992-05-21)) is a US actress and singer-songwriter known for her role as Joanna singing "All I Want For Christmas Is You" in Love Actually (2003) and for her voice roles as Vanessa Doofenshmirtz in Phineas and Ferb and Marceline the Vampire Queen in Adventure Time with Finn and Jake. Olson was adopted at birth and raised in Los Angeles, California. She lives with her mother, brother, and father. Her father is comedy writer Martin Olson. She has appeared as a singer and actress on television shows and in live theatre, including Comedy Central Stage, the HBO Theater, The Fake Gallery, and The Disney TV show Phineas and Ferb. Olson has also appeared on The Tracy Morgan Show and guest starred on The Ellen DeGeneres Show singing with DeGeneres and actor Jack Black. According to director Richard Curtis' commentary in the music section of the Love Actually DVD, Olson's singing was so perfect, they were afraid the audience would not believe that a ten-year-old could really sing the way she did. They had to train her so that her singing would sound more believable. She is currently a cast member and singer on two animated series: Cartoon LESS