Dubstep Solves Everything

Music: Who the fuck knows?
Artist: Jackfilms
Video: Dubstep Solves Everything

The Science Rap!

Music: The Science Rap! by Ali G
Artist: Sacha Baron Cohen, ft. melody sheep
Video: melodysheep

Do the TSA Pokey Pokey

Music: 
Artist: Remy
Video: Remy: Do the TSA Pokey Pokey

Bin Laden The Musical

Music: The Sound of Music
Artist: Filthy Film
Video: Bin Laden Musical Trailer (High-res version)

iWhack HQ

Music: Grenade
Artist: Rucka Rucka Ali
Video: iWhack HQ

Julian Assange Dancing

Music: Blessed
Artist: Seth Sharp, featuring Khald Rivera
Video: Seth Sharp

Piggies

Music: Piggies
Artist: Beatles
Video: Piggies