Brits fled their homes and businesses to don bikinis and tan in the park.
It's summer in the UK and Brits cannot deal.
Tuesday marked the hottest day of the year so far with temperatures reaching 35C.
London had 32C in what was dubbed a "level three heatwave" by the Met Office and all hell broke loose.
People stripped off in parks and flocked to the pubs to soak up some sun as if it was the last day on Earth. Others opted to stay inside and enjoy the virtual warmth, as#hottestdayoftheyear trended online.
But while zoo animals munched on frozen treats and office workers topped up their tan, Public Health England warned people not to get too blasé about the heat, as emergency calls soared.
London Ambulance Service reported 300 more calls than normal from people who have breathing conditions and had forgotten to stay hydrated.
The RSPCA also reported a spike in calls from those worried about dogs and cats left in hot cars and conservatories.
Companies and news organisations also clamoured to capitalise on the weather with some running a live blog or offering fashion tips and reminders about ice cream sales.
However, the heat is expected to turn to thunderstorms later in the week, the Met Office reported.
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