On Saturday morning at the Skydive Dubai field in Dubai Marina, Joe Wicks attempted to break his own world record by hosting the world's largest HIIT class.
He was hoping for 4,000 participants: in 2017, Wicks led a boot camp at London's Hyde Park that was attended by 3,804 people.
And while we don't know how many people exactly attended the Dubai class on Saturday morning, Wicks announced on Instagram that they hadn't broken the world record.
"Unfortunately we didn’t break the record but what a fantastic event," he wrote. "So proud of everyone that came along and trained in the heat. It was amazing to see so many people come together."
Scroll through the gallery above to see if you can spot yourself in the crowd.
We spoke to Wicks last month, and he told us why he thinks HIIT is such a good workout:
"High-intensity interval training is a great way of working out, especially if you’re really busy because you don’t need to spend hours in the gym; you can do a short workout, say 20 to 25 minutes. And what it involves is short bursts of energy – so say about 30 seconds of work – followed by 20 or 30-second rest periods. And you repeat that for the session, and you get great results; you burn a lot of energy and you feel fantastic. Plus, it can be done anywhere, anytime."