Donald Trump's campaign team sparked unintentional hilarity after blasting out the theme song from Titanic at a Montana rally Friday.  

Celine Dion could be heard wailing her 1998 classic My Heart Will Go On in over the speakers in Bozeman, shortly before Trump took the stage. 

The epic ballad that conjures images of a doomed ship striking a massive iceberg was played just hours after Trump's plane was forced to divert to Billings while en route to Bozeman over a 'mechanical issue.'

Some political pundits on social media felt the song a metaphor for the Trump campaign's flagging momentum, which comes just weeks after a victory in November felt all but assured.  

One even suggested there could be a 'pro-Kamala Harris' mole secretly working to undermine Trump's re-election. 

One person said: 'Omg, Trump’s rally in Montana is showing a video of Celine singing "My Heart Will Go On" from the film Titanic. Is the rally coordinator trolling Trump?' 

'Seems to me it’s a cry for help from a sinking ship. Has anyone checked on his campaign managers, are they being held hostage or maybe water boarded,' said another. 

Many people noted the irony in the theme song for a movie about a disaster being played at the event.

'Trump is saying he is going down like the Titanic,' said one person. 'The irony is not lost,' said another.

'How fitting because the Trump campaign right now is just like the titanic. Everyone’s in the bar drinking telling themselves the ship is not sinking,' a third person said.

One person created a meme movie poster recreating a scene from James Cameron's 1997 film with Trump and Vance captioned, 'Collide with failure. This November.'

'Bro, the Trump campaign keeps giving. These are real life SNL skits. Who the f**k plays a song famously associated with a sinking ship at a rally for a campaign that is sinking,' a person said.

'Is the Titanic metaphor a little on the nose, or what,' another said. 

Others questioned if the Canadian singer gave Trump's team permission to play her song.'

'Celine seems like a truly kind and compassionate legend, but you know she's on the couch at home saying, "Yeah, f**k no!" in French,' one person said.

'He can’t have Celine Dion, sorry,' a second person said. 

'Celine Dion, are you getting paid for this? You might want to call your lawyer. There's a payday waiting for you right here,' another said.

Trump remains very much in play for a second term as president in November. But his seemingly insurmountable lead over the Democrats has been dramatically-slashed over the last few weeks.

Earlier this week, his daughter-in-law and senior adviser Lara Trump is said to have sat him down and told him the race with Harris is currently on a knife-edge.

Trump is said to be considering re-hiring 2016 campaign manager Kellyanne Conway in the hopes she can repeat the success of that campaign.  

His VP pick JD Vance has been embroiled in a series of controversies, including a jib at 'childless cat ladies' like Kamala Harris that managed to offend voters of every stripe.

Joe Biden's exit from the race saw VP Kamala Harris nominated as his replacement. Her campaign quickly generated considerable momentum and raised huge amounts of cash - with Team Trump said to be surprised by her early success.

Pundits say Harris is enjoying a honeymoon period among Democrat voters relieved 81 year-old Biden is out of the picture and say she's no stranger to the kind of gaffes that could derail a presidential campaign. 

She has yet to give a proper interview about her candidacy, with many Republicans hopeful that undecided voters will turn against Harris when they are given a closer look at her. 

Trump has also spent part of the week fending off criticism of a story where he claimed to have almost been in a helicopter crash with former San Francisco Mayor Willie Brown.

On Friday night, he was accused of mixing Brown up with another black lawmaker, former California State Senator Nate Holden.

Holden told Politico he and Trump were almost in a chopper smash in 1990 and said: 'Willie is the short Black guy living in San Francisco. I’m a tall Black guy living in Los Angeles.'

Laughing at the story, he jokingly added: 'I guess we all look alike.'

Dion and her husband, René Angélil, frequently dined at Trump's Mar-a-Lago in the 1990s.

She was a fan of the French chef Bernard Goupy, especially his signature Caesar salad that was built in an edible cheese bowl. 

But one day, Trump decided he wasn't making a proper Caesar salad, tossing the salad himself and firing Goupy.

However, Celine quickly snapped Goupy up to be her chef at her Jupiter, Florida estate.