The singer was shooting the promo for the Halo hitmakers' new track The Conversation in Paris, France, when she fell and hit her head.
She was taken to hospital and was reportedly treated for a concussion and grazes to her face, according to reports.
A source tells Britain's Daily Record, "It was all quite dramatic and when she fell everyone's hearts were in their mouths.
"Of course everything on the video just stopped for the day, but thankfully she made a complete recovery and is absolutely fine now."
Spiteri was discharged from doctors' care after spending a night under observation.
When quizzed about the accident, she says, "I got into a bit of trouble during the shoot, but everything's fine now."