Biggest Reality Show Catfights
Lauren Conrad and Kristin Cavallari, Laguna Beach
Before she began pulling out her claws on The Hills, she got practice fighting with the one-year-younger Cavallari. They were never friends, as Cavallari was dating Conrad's long-time childhood friend Stephen Colletti. When they broke up, Cavallari then dated Conrad's sometimes love interest, Brody Jenner.