Bolt starred at the Palace on Friday and Saturday
The World Championships in Berlin are just around the corner and Britain's hottest talent are fighting to get on the plane.
It was the London Grand Prix at Crystal Palace with places still up for grabs with the team announced on Tuesday.
I was keeping an eye on the stars - Usain Bolt and Tyson Gay were in action - as well as speaking to the support staff behind the big names and delving behind the scenes.
Saturday's highlights included Gay and Marlon Devonish in the 200m, Germaine Mason in the high jump, Tirunesh Dibaba in the 5,000m and the top sprinters in the 100m relay.
As well as reporting for the BBC Sport website I was using my phone to text the social networking site Twitter and snapping away for a load of photos for the photo-sharing site Flickr.