Image via BBC
Everyone from Lord Sugar to Boris Johnson have been on the receiving end of a Cassetteboy mashup in the past couple of years.
The latest efforts by the satirical assassin targets David Cameron (not for the first time) on the day of the Conservative's party conference in Birmingham – and many people tuned into the Cassetteboy x D-Cam alternative speech instead of hearing the official line.
But the question remains, who is Cassetteboy? And how did they come to be? We've scoured the web to give you a brief history of the mashup video artist.
'Cassetteboy' is actually made up of two people, Michael Bollen and Steve Warlin from Brixton.
Their latest video mashup has got a lot of people talking about them.
They've been taking the p*** out of people for nearly 20 years.
Including Lord Sugar, Mitt Romney, Barack Obama, Billy Connolly, Harry Potter... the list goes on.
They started off by making tapes for friends of snippets of stuff from TV edited to music.
And could regularly be found doing stuff like this.
In the early 2000s, they released a load of music albums.
Pitchfork reviewed 'The Parker Tapes' and gave it an 8.7 rating.
They chose to remain anonymous as they were worried about being sued for their spoofs of Michael Jackson.
Luckily, that can now never happen.
Targets of their other videos include Boris Johnson, Alan Sugar and David Attenborough.
They're all fans of the mash-ups, apparently.
But, some people aren't so happy with them, including Nigella Lawson.
Her video was 'mysteriously' pulled from YouTube (but here it is).
One of the duo said of the project: "essentially, it’s a hobby that we’ve been doing for twenty years".
Here they are with DJ Rubbish, who they played Edinburgh Fringe Festival with.
Despite having racked up 21 million views they said of YouTube's business model: "it’s impossible" to monetise their channel.
They said: "occasionally [we] get some stuff on the TV and occasionally get paid to make YouTube videos but there’s not much money in that".
But, they do play at Glastonbury Festival every year.
The gig is basically a compilation of YouTube style videos, and they dress up and act out the videos.
