The MATERIAL GIRL agreed to the July (05) charity gig when newspapers began confirming her attendance before she'd agreed to perform.
But, despite her initial reservations, Madonna is pleased to have taken part.
She tells British magazine Attitude, "I promised my children I'd go to the countryside. They'd just finished school and they were really mad at me.
"Bob was like, 'Africa's more important than your children!' He's really pushy, that guy. I said, 'OK, let me think about it,' and the next thing I read in the newspaper that I was doing it and I hadn't even answered him yet.
"I don't regret that I did it - it turned out to be an amazing thing. It's just I don't like to do half-a*sed shows, and I didn't have any time to rehearse.
"Everybody else in the show was on tour already, and they had their bands and were just stopping in to do a song. I had to think, 'What am I going to do?'
"But it turned out good."