Sharon Osbourne is very much the proud grandmother and took to social media on Tuesday to share her latest snap of the baby boy.
Mrs O, 70, posted a sweet image of the youngster on her Instagram account and fans couldn't help but notice the hilarious reference to her husband Ozzy in the photo.
Labelling baby Sidney "Little O", Sharon uploaded the shot of the tot looking adorable and snug in a bat-themed swaddle blanket.
While Sharon hadn't enabled comments an the post, it was quickly liked by thousands of her followers.
The design is a not-so-subtle link to Ozzy's infamous time on stage during his Black Sabbath days which saw him bite the head off a bat.
It goes down as one of the most memorable scenes from the Prince of Darkness' career, and his wife couldn't help but poke fun at the incident by sharing the snap of their grandchild as the animal.
Despite giving birth to Slipknot DJ Sid Wilson's son at the end of last year, mum Kelly has been back to work and took on duties on Beat Shazam alongside Nick Cannon in Jamie Foxx's absence.
Away from her career, Kelly has also recently took aim at Prince Harry, branding him a "whinging t**t" in a blistering outburst.
The TV personality hit out at the Royal in a savage tirade as she said he isn't "the only one whose had mental [health] problems".
Harry has been very open about his mental health struggles in the past, saying he hopes he can help encourage others to seek guidance by sharing his own experiences.
The Duke of Sussex recently admitted he has taken part in several counselling sessions in a bid to try and deal with his childhood trauma and said he wished he had begun therapy earlier.
However, Kelly explained how a lot of people have had a hard life and said Harry simply comes across as "woe is me".
"I think Harry is a f***ing t**t, I do! I think he's a f***ing t**t," she slammed on the I've Had It podcast.
"He is a whining, whinging, complaining, woe is me, I'm the only one whose had mental problems, my life was so hard, everybody's life was f*****g hard.
"Everybody's f*****g life is hard, you were the Prince of a goddamn country who dressed up as a f*****g Nazi, and now you're trying to come back as the Pope. Suck it! No," she ranted.
