Super quick & easy tutorial to show you how to create a starry background in Photoshop. In this Photoshop star tutorial I will show you how to quickly and easily create a star background in less than a minute using Photoshop.
Step 1: Black background
Step 2: Add Noise (filter/Noise)

Step 3: Blur it (filter/blur/Gaussian blur)

Step 4: Adjust levels (image/adjustments/Levels) tweak it to how you like it

Done.

Super simple, yet very useful and effective technique. I hope this Photoshop Star Tutorial helped you.

