Fans of Kylie Jenner believe the reality star has finally disclosed the name of her newborn son - based on music that accompanied a video montage she shared on Instagram.
The 24-year-old gave birth to her second child in February, naming him "Wolf" along with her partner, rapper Travis Scott.
However, beauty mogul Kylie later revealed the pair had changed his name as they felt it didn't "feel like him."
In a video posted to her 336 million followers on Mother's Day, meanwhile, Kylie shared footage from throughout her pregnancy, which ended with a clip of her stroking the now three-month old's hand.
She captioned the post with the words: "Every day should be Mother’s Day. Thank you God for my two beautiful blessings."
It was the accompanying audio that caused a stir though, with fans quick to point out that the lullaby track, 'To Our Daughter', is performed by the artist My Best Friend Jacob.
Within hours some 10,000 people had replied to the post, many of whom curious to know the baby's name.
One reply said: "Can we see him, or know his name at least?"
Another user asked: "What did you guys name your son?"
A third comment read: "Girl what's the boy's name!"
Over on Reddit, however, users soon began discussing and speculating, with one simply asking: "Could the baby's name be Jacob?"
Another added: "Kylie's baby is named Jacob and I'm 99.9% sure of this."
A third user said: "Kid's called Jacob."
In March Kylie said in an Instagram story: "FYI our son's name isn't Wolf anymore. We just really didn't feel like it was him. Just wanted to share because I keep seeing Wolf everywhere."
Changing the name will mean the couple will have to go through the legal system as his birth certificate reads Wolf Jacques Webster.
It remains to be seen whether the pair will keep the middle name, Jacques, which is also Dad Travis' birth name.
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