Kim Kardashian, Kourtney, and Khloé wrote an autobiography entitled Kardashian Konfidential. The book was released in stores on November 23, 2010.
In December 2010, Kim Kardashian filmed a music video for a song titled "Jam (Turn It Up)," the video was directed by Hype Williams; Kanye West makes a cameo in the video. Kardashian premiered the song during a New Year's Eve party at TAO Las Vegas on December 31, 2010. The song was produced by The-Dream and Tricky Stewart. Kardashian said that she was forced into doing the song by friends such as Ciara, Kanye West, and "Turn It Up" producer The-Dream. When asked if an album is in the works, Kardashian replied: "There's no album in the works or anything – just one song we did for Kourtney and Kim Take New York, and a video Hype Williams directed, half of the proceeds we're giving away to a cancer foundation, because The-Dream's and one of my parents passed away from cancer. It's just all having fun – with a good cause". Jim Farber, writing for the Daily News, called the song a "dead-brained piece of generic dance music, without a single distinguishing feature," and suggested that the single made Kardashian the "worst singer in the reality TV universe."
Kim Kardashian's 2010 earnings were the highest of any other reality star at $6 million.
A mainstream UK national newspaper, The Guardian, has commented on her ability to attract payments of up to US$10,000 from sponsors for each tweet that Kim Kardashian broadcasts, noting that she is "an American reality TV star whose sole talent lies in her large rump".