Rock musician and social activist Bono says he will donate a guitar to the Brazilian government to benefit the president's anti-hunger program.

The frontman for the Irish band U2 was expected to make the donation after the band played the second of two shows in Sao Paulo Tuesday. The guitar is to be auctioned off and the proceeds given to President Luiz Inacio Lula da Silva's "Zero Hunger" program, which aims to provide Brazil's poor with three meals a day.

The musician discussed the program with President da Silva on Sunday in a private meeting.

U2's concert on Monday in Sao Paulo's Morumbi Stadium was filled with messages about social equality. Passages from the Universal Declaration of Human Rights scrolled down a huge screen in Portuguese, while Bono called on Brazilians to work together to end poverty.

Some information for this report was provided by AP and Reuters.