Karen O is set to provide music for the new Spike Jonze movie Her, a movie which also sees contributions from Arcade Fire and stars Joaquin Phoenix and Scarlett Johansson. This is the second time Karen O has provided music to a Spike Jonze movie, she was also in on the Where The Wild Things Are soundtrack. Arcade Fire have worked with Jonze as well, when they collaborated on the short film from Arcade Fire called Scenes From The Suburbs. Arcade Fire also did a music video with Spike Jonze for an acoustic version of the song Wake Up.
Spike Jonze describes the movie Her by saying it's "a movie set in the slight future of LA and Joaquin Phoenix's character buys the world's first artificially intelligent operating system... It basically turns into a human, this entity, this consciousness, on his computer."