Beastie Boys vs. The Kooks: Sabotaging The Kooks (DJ Schmolli Mashup Mix) (December 2008)

Timbaland vs. Moonbootica: Give It To Me House
(Illegal In Amsterdam Mashup Mix) (December 2008)

Rihanna vs. Tempo Giusto: Among Other Disturbia (Ben Double M Mashup Mix) (December 2008)

Britney Spears vs. Evanescence: Lithium Womanizer (Ben Double M Mashup Mix) (December 2008)

Related links (for more information, mixes, mp3s):
DJ Schmolli
Ben Double M