From Youtuber bd594:
Skrillex was the most requested artist so your wish is my command. Bangarang was a challenging song with respect to timing and now I have a new respect for Dubstep. For all the haters out there the audio in this video is 100% in sync with the original song. If you don’t believe me then test it out for yourself.
Vocals were performed with the DECTalk Express. The same speech synthesizer used by Stephen Hawking back in the eighties. The main vocals are the Betty and Rita presets overlapped. Kit and Dan vocal presets were also used.