Kelly Osbourne and son Sidney coordinate in fun family Halloween costumes

Kelly Osbourne and her son, Sidney, got into the Halloween spirit.

Celebrating their first spooky holiday together, Osbourne first teased a sweet photo of her and her baby boy preparing for the holiday.

"Can you guess what we are gonna be for Halloween?" she captioned a photo Oct. 30 of her wearing a clown nose and little Sidney going in for a bite.

It turns out the mother-son duo, along with her boyfriend, Slipknot turntablist Sid Wilson, turned themselves into clowns for Halloween. The family coordinated in beige, white and black looks for the festive holiday.

"Send in the clowns," Osbourne, 39, captioned the family photo, which also included baby Sidney with his grandmother Sharon Osbourne.

However, dressing up as a clown wasn’t Sidney’s only costume. In Osbourne’s latest Instagram post, she showed off her son’s skunk costume, as well as him dressed as Olaf the snowman from “Frozen.”

The proud mom asked her followers, “Which costume do you like best?”

Sidney is the first child of Ozzy Osbourne and Sharon Osbourne's youngest daughter.

When did baby Sidney arrive?

Sharon Osbourne announced in January that her daughter had welcomed her first child with Wilson.

At the time, she said, Kelly Osbourne was forbidding anyone to share photos of her little boy. “She won’t let a picture go out of him, and I’m so proud of her,” Sharon Osbourne revealed on her British chat show, “The Talk.”

Kelly Osbourne told fans as much in a since-vanished statement on her Instagram story in January. “I am not ready to share him with the world. It is no one’s place but mine to share any information on my baby,” she explained.

Kelly announced she was pregnant in May 2022

Kelly Osbourne announced she was expecting in May 2022 when she shared photos of herself holding a sonogram.

“I know that I have been quiet these past few months so I thought I would share with you all as to why…” the former "Fashion Police" star wrote at the time. “I am over the moon to announce that I am going to be a Mumma. To say that I am happy does not quite cut it. I am ecstatic!”

Kelly said Ozzy and Sharon adore Sidney

Kelly Osbourne shared the cute grandparent nicknames Ozzy and Sharon Osbourne use with Sidney during a visit to TODAY with Hoda & Jenna in May.

Ozzy Osbourne, she said, likes to be called “Papa” while Sharon Osbourne goes by “Nana.”

“(My mom) absolutely adores him, and so does my dad,” said the first-time mom. “My dad and him have a real connection.”

The Grammy-winning rocker apparently even thinks about his new grandbaby when he's asleep.

“My dad’s a sleep talker, he always has been,” Kelly Osbourne told Hoda Kotb and Jenna Bush Hager. “Now in his sleep, he calls out for Sidney. It’s really cute.”

Sharon Osbourne posted a cute pic Sept. 3 on Instagram of the former Black Sabbath frontman holding his grandson.

In the photo, Ozzy Osbourne sits in front of a laptop while clutching little Sidney close to his chest. The “Paranoid” singer mugs for the camera by making a surprised expression while holding his hand over his mouth.

“Two (Peas) In A Pod,” Sharon Osbourne wrote in her caption.

Kelly says Sidney is her 'reason for living'

While chatting with Hoda and Jenna, Kelly Osbourne gushed about how much she loves being a mom.

“I have a beautiful little baby boy, and he is my reason for living, my reason for getting up in the morning,” she told Hoda and Jenna. “My whole life revolves around him, and now I understand what the word ‘purpose’ really means.”

She added that her son was an easy baby.

“He’s the best,” she said. “He’s so chill.”

This article was originally published on TODAY.com