Celebrities attend 2012 MTV Movie Awards in Los Angeles

Actors Matthew McConaughey (L) and Channing Tatum present the award for best on-screen transformation at the 2012 MTV Movie Awards in Los Angeles, June 3, 2012. [Photo/Agencies]

Actors Matthew McConaughey (L) and Channing Tatum present the award for best on-screen transformation at the 2012 MTV Movie Awards in Los Angeles, June 3, 2012. [Photo/Agencies]