Vinyl Scratch was always at odds with her rival Octavia. She thought classical music was boring and felt that ponies needed a new sound to listen to. At the bar Prancing Pony, she introduced Dubstep to the world. And as expected, everyone, especially teenagers and young adults, loved Vinyl's music.

But sadly, it was not meant to be. Many young ponies, inspired by the rebellious beats of Dubstep, bucked against old traditions and held violent riots. Vinyl's fans looked to her as a messiah of a New Age and committed terrible crimes in her name. As Vinyl's popularity rose, so did the violence. The old stuffy ponies at Canterlot feared a coup by Equestira's youth and they used their wealth to crush the rebellion completely. They also slandered Vinyl's name by saying she drew upon Discord's power to create such blasphemous music. Soon, thanks to those stuffy Canterlot nobles, Dubstep became a symbol of evil.

Vinyl was filled with heartbreak and rage, no longer able to do what she loved, and angered by the slander to her name. Her rage increased even more when she saw Canterlot's nobles praising her hated rival Octavia as the hero of Equestria and the vanquisher of Vinyl Scratch, Discord's so-called "apprentice". Vinyl's hatred transformed the former DJ into the powerful DJ Nightmar-3!

As DJ Nightmar-3, Vinyl is able to manipulate sound, driven by the desire to create a world of eternal Dubstep. She is able to hypnotize ponies into following the ways of the WUB, create powerful and destructive shockwaves, and make her enemies dance to the power of the WUB until they drop dead. She speaks in a synthesized, auto-tune voice, a side effect of the WUB.

Unbeknownst to DJ- Nightmar-3, some of her beloved fans saw through the lies of the Canterlot nobles and created a cult around the eternal WUB, dedicating their efforts to bring back Dubstep and take revenge against those who slandered their beloved DJ. Those rich ponies won't know what hit them...

I freaking love imagining ponies in their Nightmare versions. This is the adorable white and blue DJ Pon-3 (I prefer to call her Vinyl Scratch) corrupted by her desire of a world living inside the eternal WUB!DJ Nightmar-3 has a black body (as Nightmare Moon and Nightmare Rarity) and a pair of red eyes. Her mane (as the accessories she wears in hooves, legs and neck) glows, reminding how Neon shines. Her mane flows in the air and, when she talks, it start moving as a sound wave.Interesting story about her by Hope you like it!