French artist Charles Pétillon has unveiled his first public art installation, Heartbeat, in the 19th century market building's grand interior - and it comprises 100,000 giant, white balloons.
The 54 metre creation is lit by a gently pulsating white glow, which represents Covent Garden's status as the beating heart of the area.
Pétillon is best known for his Invasions, in which he fills ordinary spaces - from basketball courts, to derelict houses and even cars - with thousands of white balloons.
He explained that these sculptures change the way people see everyday things - adding that his latest work was designed to be as alive and vibrant as the area itself.
Heartbeat will run until 27 September, alongside a pop-up gallery featuring Pétillon's photographs and work. Catch it while you can!