'For $10, what's my name?': Oprah Winfrey challenges youngster to guess who she is... but he has no clue

Although she doesn't have her own tots, Oprah Winfrey celebrated Bring Your Child to Work Day by inviting kids of all sizes to the OWN network offices Thursday.

During the day, the talk show hostess was tickled pink when she learned that although she's a household name, not everybody knows who she is.

After asking a visiting tike 'What's my name?', the 63-year-old was surprised when she learned the little one didn't have a clue.

Taking to Instagram, a silly video shows a dressed down Ms. Winfrey talking to a kid, about 10 or 11 in age.

'So it's kid's day...Your dad works here, right?' asks the O Magazine founder, which the OWN employee offspring responds to with a nod.

Oprah then gets playful and tries to make a wager with the child, asking 'For $10 - What's my name? 10 seconds'

The youngster looks back at Oprah unsure as she counts down -- much to the delight of the celebrity.

The Texas native gives the child a hint, telling them that the name 'starts with an O.' 

'How many O names are there?!' exclaims Oprah after a few seconds, 'Come on!' she continues, having a good laugh at herself.

'Oprah!' says the star, then repeating her name several times slowly just to make sure it sank in, 'O-prah, O-prah. Oh. Oh!'

The video's caption seemed to sum up the star's attitude perfectly, writing, 'Hard to impress kids these days,' while adding the tag '#OWNKidsDay.'

The talk show icon is busy around town promoting her new film The Immortal Life Of Henrietta Lacks, the fascinating story of a cancer ridden woman whose cells become essential to history making medicine.

Oprah, who also executive produced the film, plays Deborah Lacks - Henrietta's daughter whose point of view drives the narrative.

The film also stars Australian actress Rose Byrne, who plays journalist and author Rebecca Skloot.

The Immortal Lie Of Henrietta Lacks is out now, available through HBO.