Fast Steps To Create Starbust Rainbow Wallpaper

Hello guys, today i will show you about how to make simple starbust rainbow wallpaper with fast steps :D Many people know about rainbow. It has many color. I like it while i was child. And i had problem to remember its colors. Just short story hehe...
Lets see the tutorial, are you ready :D :
1. First, open your program (i'm using Photoshop CS3), make a new file at File > New or Ctrl + N at your program and set like this :
2. Remove the lock icon at layer by click twice then ok....