ICYMI, The Hills is about to return to our telly screens, and we ~literally~ cannot deal.

The Hills: New Beginnings reunites original cast members Audrina Patridge, Brody Jenner, Frankie Delgado, Heidi Pratt, Jason Wahler, Justin "Bobby" Brescia, Spencer Pratt, Stephanie Pratt and Whitney Port, and adds newcomers Brandon Thomas Lee and Mischa Barton. The series follows the cast as they navigate their personal and professional lives and face new chapters of life in Los Angeles.

To celebrate The Hills: New Beginnings, we’re counting down the most iconic moments from show’s first six seasons, from Whitney Port faceplanting on national telly, to Lauren's perfecrt mascara tears.

Number four on out list is one of the show's most unforgettable moments, from epsiode one, seasons three, when Lauren and Heidi's troubled friendship comes to a dramatic end.

At this point of the series, Heidi has moved out of Lauren's place and in with Spencer and the former BFFs are NOT in a good place. Lauren, still angry about the sex tape rumours, declines Heidi's invitation to her housewarming party.

Lauren and Audrina decided to head out to Les Deux instead, but end up running into Heidi and Spencer anyway. Heidi attempts to patch things up by giving Lauren a letter detailing her interest in rekindling the friendship, but clearly, it's wayyyy too late for that.

Check out Lauren and Heidi's explosive fight in the clip below:

Lauren tries to leave the club and it ALL kicks off. Lauren tells Heidi, "you're not my friend anymore, I don't care about you, I don't ever, ever want to talk to you."

Heidi tells Lauren, "I was there for you through everything, and now you're mad at me?"

Lauren asks, "do you know WHY I'm mad at you?"

Then we are #blessed with the iconic line, "YOU KNOW WHAT YOU DID!"

"You started a sick little rumour about me...you're a sad, pathetic person," Lauren says before leaving.

FULL. BODY. CHILLS!!!

This was a pivotal moment in The Hills series and one we won't be forgetting any time soon.

stay tuned as we countdown more iconic moments from the hills, and don't miss the hills: new beginnings when it premieres on june 25th, only on mtv!

Check out the full episode below: