1) Make a new document, anysize doesn't matter. Press CNTRL+D to reset your pallete colors. Make sure your background is BLACK.
2) Apply Filter>Render>Clouds.
3) Apply Filter>Artistic>Plastic Wrap with these settings:
4) Go to Image>Adjustments>Levels and apply these settings:
5) Filter>Distort>Polar Coordinates:
6) Right click the layer and go to Duplicate. Set the new top layer to Screen.
7) Apply Filter>Artistic>Plastic Wrap again:
8) Apply your colors now, press CNTRL+U.
Final:
More Tutorials: 
