It's a once-in-a-lifetime opportunity that ties in with next year's London Olympics, and you could be a part of it.
The Olympic Park Run, which is being sponsored by the National Lottery, will cover a distance of five miles and takes place at the end of next March.
The event gives participants the exciting chance to be among some of the first people to cross the finishing line inside London's brand new Olympic Stadium - the very same finishing line that the likes of world-record-breaking sprinter Usain Bolt will also be crossing a few months later.
Places are limited to 5,000 for this exciting event, although organisers are expecting that many, many more will want to join this one-off opportunity and be a part of Olympic history.
The only real requirement is that participants should be 16 or over on the day of the event (31st March).
If you're interested in taking part in what will be the first public event inside the venue, you'll need to get your name in a ballotbefore 27th October.
If your name is picked out in the random draw, you'll be notified by email within the following seven days.
Successful applicants will be asked to pay £15 to participate, which includes two tickets for friends or family to come to the stadium to cheer you over the line.
Your entry fee also gets you a comprehensive information pack, a T-shirt to run in on the day, computer chip timing for a completely accurate running time, a souvenir finisher's medal, on-course refreshments and a finisher's pack.
The run will cross the newly built Olympic Park in Stratford, pass by some of the new sports venues such as the Velodrome and Aquatics Centre, and end with a jog around the track inside the Olympic Stadium - just think, there won't be many people who can say they did that.
You don't have to be an expert jogger to take part. You just need bags of enthusiasm and a pair of running shoes. So what are you waiting for? Get your name in the ballot quick.