David Cook, the American Idol winner has just decided to climb aboard another bus for TV entitled “Get on the Bus”. Cook volunteered on ABC’s “Extreme Makeover: Home Edition, which shows on January 10 at 8PM. David Cook will be with rapper Xzibit as they help rebuild a house owned by the Cowan Family. They are a family of factory workers with their youngest 12 year old child, Kori, suffering from a congenital blood disorder. The molds infesting their house have been also causing Kori nasal polyps. Though Kori has been having these conditions, she still helps in raising money for the American Cancer Society to honor her friend whom she met in a blood clinic.