*magic*
jk
It's a blend of gradients, rotate/zoom and blurring.
This was the original image I made.http://i.imgur.com/iLGceJl.jpg I was dumb so I forgot to save it as PDN.
too lazy to resize sorry. As you can see, I already added motion blurring so it was hard to salvage it. I got even lazier when doing the effect so I just use magic wand.