CHICAGO - JULY 11: Singers Willie Nelson (L) John Mellencamp (R) announce plans for an event marking the 20th anniversary of Farm Aid during a news conference July 11, 2005 in Chicago, Illinois. Nelson, with the help of Mellencamp, founded Farm Aid in 1985 as a day-long music festival in Champaign, Illinois, with proceeds to benefit struggling family farmers. (Photo by Scott Olson/Getty Images)
