Radio hosts' wild theory about why international superstars keep falling through trapdoors on Melbourne stages - after Chris Martin and Olivia Rodrigo mishaps went viral

Jackie 'O' Henderson and Kyle Sandilands have revealed their wild theory about why international superstars keep falling through trapdoors in Melbourne.

On Sunday night, Coldplay's Chris Martin fell through a door in the stage floor, echoing a similar incident with Olivia Rodrigo just weeks before. 

On Monday's The Kyle and Jackie O Show, the radio duo drew a line between the incidents.

'Can I just bring up the trap door that keeps getting left open... it was left open again,' said Jackie, 49.

She detailed how Chris Martin, 47, was performing the band's fourth and final Melbourne date on their Music of the Spheres tour when he tripped during the sold out show and fell in front of the packed audience at Marvel Stadium.

The Coldplay frontman was reading out audience signs and walking backwards during a break in the show when he tumbled through a hole in front of the shocked crowd.

Co-host Kyle Sandilands joked that the reason the accident has happened again is because interns were stepping in for stage managers.

'Do you think it's the same guy? Or even worse... the old guy got fired for it, and then it turns out it may not have been his fault' Jackie said, before wondering whether there is only one staging company that runs international concerts.

'Wouldn't you think that we have one big staging company that they all use?'

Kyle then speculated, 'what if it was two staging companies? They guy got fired for Olivia Rodrigo, went to work at the new place, and he's left the door open again?' 

Later in the segment, Kyle and Jackie took a call from a professional stage manager, Ryan, who shone some light on what might be going on.

'There's a few things that could be happening. Usually when you're working at an arena show like that, there's a stage manager calling all the cues: the lighting cues, everything, all the movements that you see going on,' he said.

'A lot of the times with the stage door, it's a local crew that get hired for that one show and they're following directions of someone else that's on a headset.

'It could be many things... either the stage manager said "stage door go" and Chris Martin was not supposed to be there at that time or talking to the crowd, or the stage guys opened it too early,' Ryan explained.

In footage shared to social media of Coldplay's Sunday show, concertgoers are heard gasping as Martin falls and stumbles out of view.

The Yellow singer is then heard reassuring fans, 'That’s not planned', before adding, 'Thank you for catching me' to a production hand underneath the stage.

Following the incident, Martin continued on with the show and has so far not reported any injuries.

Rodrigo's eerily similar fall occurred at Melbourne's Rod Laver Arena last month.