I found some beautiful art Defacing in my VLC player while watching The Imaginarium of Doctor Parnassus by Terry Gilliam.
Alva Bernadine does some art Defacing. Comes to you via acidolatte.
Jesse Fillingham does some art Defacing too. Comes to you via beautifuldecay.
Chad Wys does some Defacing, comes to you via fubiz.
Anika Lori does some art Defacing collage, this comes to you via beautifuldecay.
Alain Bizos did some Defacing. Comes to you via GLEM.
Duane Michals did some Defacing photography. this comes to yo via GLEM.
Avraham Cornfeld does some design Defacing, see all amazing designs by this artist here.
Igor Savchenko does some Defacing. Comes to you via GLEM.
Marlo Pascual does some sculptural art Defacing. Learn more on Marlo Pascual here.
Chantal Rens does some collage art Defacing. comes to you via bumbumbum.
April Gertler does some graphic Defacing. comes to you via pool-gallery.
Find here some pictures from last Venice Biennale 2009
Dieter Roth did some art Defacing too, read this interesting artnet article here.
The image above is of Dieter Roth by Arnulf Rainer and below from Dieter Roth.