The first episode of The Hills aired on MTV on May 31, 2006, and in honor of the show's 10-year anniversary, ET's celebrating 'Hills Week' with exclusive interviews with the stars of the beloved series.
"You know what you did!"
With those five little words, MTV's smash "reality" show, The Hills, ignited a friendship-ending bang that would echo for years to come in the pop culture universe.
In honor of The Hills' 10-year anniversary, ET sat down exclusively with Heidi Montag, Spencer Pratt, and Jason Whaler to finally get the truth on all those sex tape rumors that plagued Lauren Conrad's life in season three of the series.
While we at ET still feverishly discuss episodes of The Hills on a daily basis, we know that some of you out there might want a bit of a refresher on all the "You know what you did" drama -- so here's what you need to know:
When season two of The Hills ended in April 2007, Montag had decided to move out of her apartment with Conrad and into a place with then-boyfriend Pratt. The girls' friendship at that point was strained, but still intact.
So when The Hills' third season kicked off in August 2007 and Conrad explained via voiceover in the premiere that she and Montag "could never be friends again," we knew that some serious ish must have happened.
When asked about the wild rumors that were making Internet headlines in 2007, Conrad explained the situation to her Hills co-star, Whitney Port. "They basically were saying that me and Jason made, like, inappropriate video tapes," she said.
All the drama came to a head at Les Deux nightclub when Montag tried to confront Conrad about their broken friendship and the rumors that were swirling around Hollywood.
Conrad then screamed the now-infamous line, "Why am I mad at you? You know why I'm mad at you! You know what you did!"
"The reality of it is, is that there isn't a sex tape," Whaler recently stressed to ET's Ashley Crossan. "I don't know how many more times or interviews that we've talked about it in the past to clarify it. There's no tape."
Whaler added that it's "unfortunate" that rumors of a sex tape even became a storyline on the series. "Whoever started it, started it," the 29-year-old former reality star said. "It's just annoying and it's childish, but, no, there's no tape."
Tape or no tape, the rumors surrounding the controversy were very real -- and they all were pegged on Montag and Pratt.
"That's a really hard situation and that was a very challenging thing," Montag confessed while sitting in the living room of her and Pratt's Los Angeles home. "I think that's Lauren and her past and [we] really had nothing to do with that."
Montag recalled the very moment that she realized that the sex tape rumors were being linked to her and Pratt. "Honestly, it was a hard time because I went in for my first cosmetic surgery and then I came out and it was like this crazy explosion," she said. "My phone has like 100 texts and eight things from her and all these people and I'm like, 'What the heck is? Did I die and go to hell? What just happened!?'"
Pratt believes The Hills was "struggling for drama" at the start of its third season and wanted to try and peg it all on "the villains" -- aka he and Montag.
"I feel like no matter how many times I try to explain this situation, it's always like, 'Spencer made it up.' But I didn't make up anything," Pratt explained. "I'll just leave it at that. Nothing was ever made up. If it was, some lawyers would have sued [me] for defamation of character. Nothing was ever made up."
Now that The Hills has been off the air for the past six years, Montag and Pratt want to finally put these rumors behind them.
"I never want to be asked about Lauren's sex tape ever again, honestly," Montag declared. "I had nothing to do with any of that. [I was just] trying to be a good person and that's it. Forever."