Willie Nelson, left, opens the 20th anniversary Farm Aid concert by singing the "Our Father," Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill. The day-long concert is the culmination of a week of events to benefit family farmers.
Rocker Neil Young performs at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill. Young called Farm Aid "a voice for the little guy."
Neil Young performs at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill. Farm Aid said it was providing cash, food and support to farmers, rural hurricane victims and small towns attracting newly homeless Katrina victims. Young's sermons about the environment are a highlight of the annual shows.
Buddy Guy, left, and John Mayer perform at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill. The day-long concert is the culmination of a week of events to benefit family farmers.
Emmylou Harris performs at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill. The day-long concert is the culmination of a week of events to benefit family farmers.
Dave Matthews performs at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill. The day-long concert is the culmination of a week of events to benefit family farmers. Farm Aid is an organization that works to increase awareness of the importance of family farms, and puts on an annual concert of country, blues and rock music with a variety of stars.
Dave Matthews performs at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill. The day-long concert is the culmination of a week of events to benefit family farmers.
John Mellencamp performs at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill. Mellencamp is a co-founder of Farm Aid, which since its formation has granted more than $15 million to more than 100 farm organizations, churches, and service agencies in 44 states.
John Mellencamp performs at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill. The day-long concert is the culmination of a week of events to benefit family farmers.
Sen. Barack Obama, D-Ill., introduces Wilco at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill.
Sen. Barack Obama, D-Ill., right, introduces Jeff Tweedy, left, and Wilco at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill.
The musical group Wilco performs at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill.
Folk singer Arlo Guthrie performs at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill. Guthrie is the son of famed singer-songwriter Woody Guthrie.
Eddie Spaghetti, of the Supersuckers, performs at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill. It was one of many groups that pertformed in the day-long concert.
Singer Susan Tedeschi performs at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill.
Country music legend Willie Nelson, third from left, performs the finale at the 20th anniversary Farm Aid concert, Sunday, Sept. 18, 2005, at the Tweeter Center, in Tinley Park, Ill. Nelson is a cofounder of Farm Aid with John Mellencamp and Neil Young.