In a matter of hours, British rapper Dan Bull used social media to collaborate with fans on 'SOPA Cabana,' a song and accompanying video denouncing Congress' proposed Stop Online Piracy Act. If lawmakers get their way, the MC fears, such crowd-sourced creations -- not to mention other types of free expression -- might cease to exist.

Imagining a future in which the Internet has been shut down, the U.K. rhymer spends 'SOPA Cabana' outlining fears that have also been voiced by civil liberties groups, human rights organizations and such major web companies as Facebook, Google and Twitter, the Washington Post Reports.

"There used to be a thing called freedom of speech, we had freedom to teach each other, freedom to preach," Bull raps in the video, incorporating lyrics, themes and photos submitted by fans. "Freedom to share culture and circulate ideas without the state trying to interfere."

Likely to pass the House Judiciary Committee and hit the floor for a full vote, SOPA would give authorities and copyright holders more power to shut down websites found to be hosting pirated content. The bill has broad support from both parties, and proponents claim they're only trying to protect artists from those who profit from their work.

SOPA opponents, among them the American Society of News Editors, maintain that the legislation would stifle innovation and speech and create a climate of fear.

"Imagine my astonishment when the newest threat to free speech has come from none other but the United States," Google co-founder Sergey Brin wrote last month, according to the Washington Post. "While I support their goal of reducing copyright infringement (which I don't believe these acts would accomplish), I am shocked that our lawmakers would contemplate such measures that would put us on a par with the most oppressive nations in the world."

Watch Dan Bull's Video for 'SOPA Cabana'

Watch 'SOPA: Less Piracy or More Censorship?'