'DWTS' Feud! Stars 'Irritated' Over Christie Brinkley's Daughter's Addition To Cast

The Dancing with the Stars contestants are already feuding - and they haven't even hit the dance floor yet! RadarOnline.com can exclusively reveal Christie Brinkley's daughter Sailor's surprise addition to the cast has set off younger singers Ally Brooke and Lauren Alaina. "Ally and Lauren seem irritated that another young celebrity has come into the