Reality TV star Kylie Jenner has sparked mixed reaction after making her Victoria’s Secret Fashion Show debut in a $50m (£37m) bra.

The make-up mogul surprised the crowd at the lingerie giant’s annual show on Sunday while wearing the famed Fantasy Bra, which was made of 18-carat gold and 4,410 diamonds, according to the designer.

The Fantasy Bra has been a key feature of the show over the years and wearing it is typically seen as an honour and defining moment for the chosen model.

The Kardashians star, 29, being selected to wear the piece delighted some fans, while many others criticised the brand for not giving the opportunity to a veteran supermodel.

Social media and marketing expert Joel Marlinarson says the moment was well-engineered and generated “a lot of conversation” on what it means for the “future of modelling and social media”.

“Of course Kylie represents a new era of celebrity where brands are prioritising who’s going to bring the most eyeballs, as opposed to who fits the cookie cutter definition of a model,” he tells BBC Newsbeat.

Marlinarson says young viewers have a connection with Jenner having grown up watching her on social media and through her reality show with her Kardashian sisters.

However, he says there will be a section of the audience who remembers “the iconic Naomi Campbell era of fashion” who might see Jenner being given this moment as a “betrayal of what they know”.

“Ultimately, this represents this new era of marketing where brands, particularly Victoria’s Secret and legacy brands, they don’t want to take risks,” he says.

“They want to bring in somebody who they know is going to generate eyeballs, who’s going to generate those headlines and who can consistently raise a crowd and that’s exactly what Victoria’s Secret has done.”