Cardi B has slammed the stepson of British billionaire Hamish Harding for attending a Blink-182 concert after finding out he is aboard the missing Titanic submarine.

Brian Szasz confirmed in Facebook post on Monday that he was the stepson of the explorer, before sharing a snap from the San Diego show, insisting his family would ‘want him to be there.’ 

And in a furious social media post, rapper Cardi B insisted the stepson should be ‘at home, crying’ and waiting for updates on his stepfather’s whereabouts instead of ‘shaking d***ks’ at a concert.

Cardi – using a filter many commenters found hilarious – told her followers: ‘One of the billionaires, their stepson is at a concert right, at a Blink 182 concert.

‘And people are like ”erm what is he supposed to do, be sad at the house, is he supposed to go look for him himself?” Yes!’

Really? Cardi B has slammed the stepson of British billionaire Hamish Harding after he attended a Blink-182 concert after finding out he is aboard the missing Titanic submarine. But some commenters felt the filter she used deflected from the serious message

Speaking out: Brian Szasz confirmed in Facebook post on Monday that he was the stepson of the explorer, and insisted his family would ‘want him to be’ at the show

Cardi B slams explorer billionaire’s stepson for attending concert

‘You are supposed to be at the house sad, be crying for me, you are supposed to be right next to the phone, waiting to hear any updates about me.

‘Isn’t that sad that you are a whole f****g billionaire, and nobody gives a f**k about you?

‘Like you missing, and mother f****rs are ready to shake d***s at concerts. That’s crazy! I’d rather be broke, and poor then like knowing I’m loved.’

One fan wrote: ‘The filter is killing me. Why is it looking at me like that?’

Another added: ‘How am I supposed to take this seriously with this filter?’

In his original Facebook post, Brian shared an image outside the San Diego venue where he was watching the Blink-182 concert

He captioned it: ”It might be distasteful being here but my family would want me to be at the Blink-182 show as it’s my favorite band and music helps me in difficult times!’

Szasz’s profile is publicly visible, although comments are only open to family and friends. All of those who commented on his status voiced their support for Szasz’s decision.

Meanwhile, the search continues for the missing Titanic tourist sub. On Tuesday, the US Coast Guard gave the bleak warning that it may not be able to rescue the sub – even if they are able to find it.

At 6pm UK time on Tuesday, they estimated the sub had 40 hours breathable air remaining – if it hasn’t already imploded and killed all on board.

Harding, 58, is among the five adventurers onboard a submersible that lost contact with its mothership as it reached the site of the Titanic wreckage early Sunday morning.

Experts have said OceanGate ‘s Titan ship had enough oxygen to last the crew 96 hours, but it is set to run out Thursday morning.

But Harding’s company, Dubai-based Action Aviation, said in a statement posted to Instagram it has faith in the ongoing rescue missions.

‘Both the Harding family and the team at Action Aviation are very grateful for all the kind messages of concern and support from our friends and colleagues,’ it said.

‘We are thankful for the continued efforts of the authorities and companies that have stepped in to aid in the rescue efforts. We put great faith and trust in their expertise.’

The Titan submersible has been missing since 9.45am EST on Sunday morning after being launched into the Atlantic at 8am.

OceanGate Expeditions – the company which runs the tours and is responsible for the sub – did not notify the Coast Guard until 5.40pm, DailyMail.com exclusively revealed earlier on Tuesday.

A total of five people are on board.  The others are OceanGate CEO Stockton Rush, who’s leading the mission, and the world’s pre-eminent Titanic wreck expert PH Nargeolet.

Worrying: Hamish Harding is one of five passengers aboard the Titan submersible, which has been missing since Sunday morning with air slowly running out

Also on the submersible are British-Pakistani billionaire Shahzada Dawood, 48, and his 19 year-old son Sulaiman.

Even if they locate the missing vessel in time, there is no certainty that it can safely be brought to surface.

At a press conference at the US Coast Guard Station in Boston – which is coordinating the search and rescue effort – First District Response Coordinator Capt. Jamie Frederick conceded on Tuesday that rescue was not guaranteed.

‘Even with that amount of time left, if you were to find the submersible at this moment, would that give you enough time to save those five people on board?’ he was asked.

‘I don’t know the answer to that question… all I know is we will do everything within our power to effect a rescue,’ Frederick replied.

The Coast Guard has already searched 7,600 square miles of ocean – a search area the size of Connecticut.