1) Make a 400x400 document. Now press "D" on your keyboard to reset the foreground and background colors to black and white. Make sure your background is WHITE.
2) Make a new layer. Now select the paint brush tool and use the Permanent Marker Brush. On the new layer make a few squigly lines like below:
 3) Apply Filter>Blur>Radial Blur with these settings:
Now apply Filter>Sketch>Chrome with these settings:
4) Practically done now, just got to color the star. Press CNTRL+U. Apply these settings:

There your done:
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