Question: Which band released a single that features vocals from an Australian computer programmer and the founder of WikiLeaks?

Context paragraphs:
Julian Assange: Julian Paul Assange ( ; born Julian Paul Hawkins, 3 July 1971) is an Australian computer programmer and the founder of WikiLeaks, an organisation which he founded in 2006.  He has won accolades including the Sam Adams Award and Martha Gellhorn Prize for Journalism.

Tom Worthington: Thomas "Tom" Worthington (born 3 February 1957) is an Australian computer programmer best known as an expert witness in the Maguire v SOCOG 2000 Olympic web accessibility case and teacher of Green computing.

Andrew Stone (computer programmer): Andrew "Andy" C. Stone is an American computer programmer best known for his iOS app Twittelator, which to date has sold over a million units for the iPhone and the iPad.  The founder, director, and principal programmer for Stone Design Corporation, Albuquerque, New Mexico.  In his 25 plus year career as a programmer, he has published over 35 software titles for Hypercard, the NeXT workstation, Mac OS X, and currently for iOS iPhones and iPads.

Xavier Di Petta: Xavier Di Petta is an Australian computer programmer, Internet entrepreneur, and a creator of @HistoryInPics and @EarthPix on Instagram, Facebook, and Twitter.  Di Petta has been featured in The Times' 'Top 25 Under 20' and 'The 15 Smartest Teens On The Planet'.

Anthony Wesley: Anthony Wesley (born 1965) is an Australian computer programmer and amateur astronomer, known for his discoveries of the 2009 and 2010 Jupiter impact events.

Multi Viral (song): "Multi_Viral" is a single by Puerto Rican alternative hip hop band Calle 13, released on November 11, 2013, as the first and eponymous single from their 2014 fifth studio album, "Multi Viral".  It features additional vocals from Palestinian singer Kamilya Jubran; spoken words by Australian journalist Julian Assange (founder of WikiLeaks), which were recorded at the Embassy of Ecuador in London, where he currently resides under diplomatic asylum granted by the Ecuadorian government; and American guitarist Tom Morello, of Rage Against the Machine fame.

Pieter Van den Abeele: Pieter Van den Abeele is a computer programmer, and the founder of the PowerPC-version of Gentoo Linux, a foundation connected with a distribution of the Linux computer operating system.  He founded Gentoo for OS X, for which he received a scholarship by Apple Computer.  In 2004 Pieter was invited to the OpenSolaris pilot program and assisted Sun Microsystems with building a development eco-system around Solaris.  Pieter was nominated for the OpenSolaris Community Advisory Board and managed a team of developers to make Gentoo available on the Solaris operating system as well.  Pieter is a co-author of the Gentoo handbook.

Kenny Sabir: Kenneth Spencer Sabir (born ca. 1975), who performs as Traksewt, is an Australian musician, computer programmer, record label founder and event organiser.  In 1998 Sabir co-founded an independent record label, Elefant Traks.  In 2001, with his fellow label owners, he was an original member of hip-hop band, The Herd and is their producer.  As of August 2011, The Herd have released five studio albums including "Summerland" (2008) which peaked at No. 7 on the ARIA Albums Chart and "Future Shade" (2011) which reached the top 30.

Mark Delany: Mark Delany is an Australian computer programmer and consultant specializing in e-mail infrastructure and anti-spam techniques.

Andrew Tridgell: Andrew "Tridge" Tridgell (born 28 February 1967) is an Australian computer programmer.  He is the author of and a contributor to the Samba file server, and co-inventor of the rsync algorithm.

Supporting paragraphs: Multi Viral (song) Julian Assange
Answer: Calle 13