I found what the video shoot is from.
Carrie will be singing a song called EVER AFTER from a new Disney Movie titled Enchanted. The movie will be released November 21st & stars Amy Adams, Patrick Dempsey, Susan Sarandon & the voice of Julie Andrews among others. Carrie was shooting the video to the soundtrack in LA last week.
Here is a plot description from IMDB.
Enchanted (2007) - Plot summary
In an animated fairy tale world, a young girl meets and falls in love with the handsome prince of her dreams. News of this romance upsets the prince's mother, the evil queen, who uses her black magic to send the girl hurtling out of the animated world into the one place in the universe where there is no true love: modern day Manhattan. The now-real girl has to survive in New York City and find her way home again to her true love.