Which huge event had runners, swimmers, and gymnasts compete in Paris?

The Olympic Games is correct because that's the huge international event held in Paris in 2024, where runners, swimmers, gymnasts, and many other athletes from countries all over the world gathered to compete.

A music concert or a cooking show wouldn't bring together thousands of athletes from different countries to compete in dozens of different sports — those are entirely different kinds of events.

The Olympics happen every four years and rotate between different host cities around the world, so athletes and fans get to experience a new country's culture and celebrations each time.