Leah Remini has been filling in for host Erin Andrews on "Dancing With The Stars," and during last night's Halloween episode, she took quite the tumble.

While conducting one of her post-dance interviews with Tamar Braxton and Val Chmerkovskiy, someone in a creepy clown mask snuck up behind her, grabbed her and scared her so bad she fell to the ground screaming. "Damn you!!" the 45-year-old "King Of Queens" actress yelled following the prank. "You know, I'm not good with people scaring me!"

Host Tom Bergeron then insisted the producers replay the clip, as he was shocked Remini didn't let out a single curse. Remini seemed proud of this, too, as she yelled, "I didn't curse! I didn't curse!"

"I feel a little bit bad because I didn't realize I would scare her that bad," pro dancer Sasha Farber, who was the man behind the mask, told Fox News. "She literally fell on the ground and screamed so I think I did all right. I did apologize to her...It was nerve-wracking because you never know what can happen on live TV. She could have punched me. That would not have gone down so good. I apologized to her and we had a laugh."

"@leahremini it's Halloween week, it had to be done, love you!" Farber captioned the video on his Instagram.

Watch the hilarious prank below!