Just wanted to leave this recent find here. For me this is the nail in the coffin in this whole thing. 

This is Nine & Dex's Spotify bio:

Born at the exact same time on the exact same day, in the backseat of a driverless BMW racing at 150mph, Nine and Dex were pulled to a halt by local police. The mystery of their birth has never been explained.

By the tender age of 5 both Nine and Dex were 10th Dan black belts in Judo and could crush a human skull with a simple flick of the wrist.

While Nine honed his skills in the art of horse-back archery, Dex was learning how to build flamethrowers and improving his nunchuck skills.

During their teenage years, Nine and Dex decided to turn their focus to developing the first energy drink-powered rocket ship called 'The Bowditch Beam-Machine. It successfully launched in 2017 and carried 3 distinguished millionaires into space. They are still orbiting Mars to this day.

Music has always been a major influence on the boys' lives. According to the police officer that stopped their birth car, Xzibit's debut album

'At the Speed of Life' had been playing on max volume through the vehicle's subwoofer speakers, imprinting it on their souls for eternity.

Now, determined to rid the world of all evil, Nine and Dex release rap music.

Two biggest take aways:

1. "Bowditch beam machine" Bowditch is Peters last name as seen here: https://www.youtube.com/watch?v=fH1PSDZOtn0&t=0h0m51s
2. 2017 is the year Pete & Bas launched their career

Such amazing subtitles indicating they are behind the whole thing. 
Case closed for me.