For many, watching the world's fastest man attempt to conquer his already immense Olympic record is the main draw of the games in Rio, so it's a good thing that Usain Bolt is already warming up the crowds in typically flamboyant fashion.
With DJs, samba dancers and a presentation by Jonathan Edwards (seriously), Bolt took over the largest theatre in South America to announce that he plans to break his 200m world record of 19.19 seconds, and that Rio will be his final Olympics.
Having taken three golds in London and Beijing respectively, Bolt is aiming to leave the sport as the undisputed Greatest Of All Time, although there are still questions over a persistent hamstring injury.
"I'm a sprinter first but I like to entertain because that's what people come out to see," he said to the gathered.
"It's what I do. I try to make it different."