Usain Bolt is known for two things: his entertaining personality and running very, very fast. The reigning world's fastest man plans to showcase both of those things this week at the track and field world championships.

It's almost a given that the 25-year-old Bolt will perform well at this week's meet in Daegu, South Korea. But what has become even more expected from the goofy Jamaican are his pre and post-race antics.

"That's just who I am. I like to have fun, like to make people laugh," Bolt told the AP. "The fans like seeing me being me and trying to enjoy the championships as much as possible."

Whether he's celebrating before crossing the finish line, doing an awkward post-race dance or just striking a pose, Bolt likes to enjoy himself after he wins. And really, who can blame him? He's so absurdly fast he doesn't just break records, he shatters them.

After winning three gold medals at the 2008 Olympics - with victories in the 100 meters, 200 meters and the 4x100 meter relay - Bolt has only solidified his position as the world's top sprinter. In Beijing Bolt set world records in each of his events, finishing the 100 in 9.69 seconds, the 200 in 19.30 and his Jamaican team finished the 4x100 in 37.10.

At the 2009 world championships in Berlin, Bolt was even more impressive. He re-set his world record in the 100 with a mind-boggling 9.58, and in the 200 he blew away his previous mark by finishing in 19.19 seconds.

Bolt has been dealing with nagging back issues since 2010 and does not expect to re-break his records this week. In fact, his best time this year in the 100 meters has been 9.86 - which is pedestrian by his standards.

That said, it would be a huge disappointment if Bolt loses this week in Daegu. Fellow Jamaican Asafa Powell withdrew from the competition with a groin injury and top American sprinter Tyson Gay is out as he recovers from hip surgery.

So this should come down to Usain Bolt racing against the ridiculous expectations his past performances have created. He doesn't seem to be backing away from them either. "A lot of people have their own goals. My goal is to become a legend. I'm working on it," Bolt said.

He's well on his way, and we will definitely be watching over the next week to see what he does before, during and after his races.

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