Lauren Conrad and Heidi Montag | 39

When The Hills first hit MTV in 2006, Lauren Conrad and Heidi Montag were inseparable – blonde fashionistas chasing LA dreams together. But in season 2, Heidi’s new boyfriend, Spencer Pratt, enters the scene, creating major tension between the two besties. The show's drama spiraled around this friendship rift, pulling viewers in with shouting bar fights, sex tape rumors, and iconic one-liners. But what fueled such a bitter betrayal, tearing their friendship apart? And how was the show itself manipulated to create such a volatile onscreen rivalry? See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.