Equestria's best DJ, Vinyl Scratch, has always been a lone wolf, or in this case, pony. One night in Fillydephia has her world turned upside-down when she meets another she must collaborate with, MC W1SH, or Neon Lights. The two of them talk, and the rest is history.
Based off the comic that you can find here:
http://vinylxneonlights.deviantart.com/gallery/#/d4l15bx