Video: Kathy Hilton sings karaoke at Kris Jenner's birthday bash | Daily Mail Online

Kathy Hilton shows off her karaoke skills as she celebrates Kris Jenner at Kris' birthday party. Joining her is Kris herself, as well as Khloe Kardashian, Melanie Griffith, Kourtney Kardashian and Kym Douglas.