Kelly Cutrone -- ruthless fashion PR honcho -- is a hard one to surprise, let alone to get her to reveal her softer side. But on the 'Kell on Earth' finale (Mon., 10 PM ET on BRVO), the team somehow managed to pull off a surprise birthday party that turned emotional for Kelly.

"I'm not used to that kind of love... I think I'm crying, and I'm going to have to go outside because that's my rule."

A rare moment indeed.

Watch the video after the jump.Kelly Cutrone -- ruthless fashion PR honcho -- is a hard one to surprise, let alone to get her to reveal her softer side. But on the 'Kell on Earth' finale (Mon., 10 PM ET on BRVO), the team somehow managed to pull off a surprise birthday party that turned emotional for Kelly.

"I'm not used to that kind of love... I think I'm crying, and I'm going to have to go outside because that's my rule."

A rare moment indeed.