You may take one look at this video and think, "What a bunch of nutters!"
But they prefer to call themselves action sports stars.
Broken bones, near death experiences – nothing stops them coming back for more.
According to their promoter, they're the crazy kid you remember from school who was always up for a stunt – usually egged-on by his classmates.
And then that kid grew up and ran away to the circus – Nitro Circus.
The first show of their New Zealand tour is underway right now in Dunedin.
Jendy Harper and our cameraman Christie Douglas went to the rehearsal – watch the video.