Rock star Bono pressed French leader Nicolas Sarkozy to increase aid to developing nations, the aid advocacy group DATA said.

The organization, co-founded by Bono, front man of the U2 rock group, has urged France to raise development assistance to 0.7 percent of gross national income by 2012 as agreed earlier. In 2006, French aid stood at 0.31 percent of gross national income, DATA said.

"The president admitted it would be very, very hard, but France would keep her word," the statement quoted Bono as saying Tuesday following the meeting.

DATA's statement cites an October parliamentary report showing France's estimated overseas development assistance would be 0.35 percent of gross national income in 2007 and would remain at 0.35 percent in 2008.