Socialite Nicole Richie's backyard was once overrun by raccoons after she forgot to cover the swimming pool at her California home.

Lionel Richie's daughter was enjoying an evening with friends, when she noticed the fury critters on her security cameras.

She tells U.S. late night host Seth Meyers, "I see what look like white Tasmanian devils just running so fast around my pool and it looked like they were jumping down and jumping out and it was so fast and I really didn't understand what this was. I grabbed my two friends and I was like, 'Yo, you guys have to come upstairs with me and we have to turn the lights on because I don't know what this is. I feel like I'm freaking out, I feel like I'm crazy right now.'

The group quickly realised what the creatures were, but had no idea how to get rid of them: "There are about 22 raccoons having a full blown party... so one of my friends was a guy and I said, 'Hayden, run outside and try to scare them away.' He runs out, does his thing and instead of running away, two of them started having sex right in front of us. There were babies, they were in the pool. It was a summer night and I forgot to cover the pool."