Iqbal Bano, who died a few days ago, was one of Pakistan's most famous and beloved singers. She was expecially known for ghazal singing, and in particular for singing the ghazals of Pakistan's most famous and beloved poet, Faiz Ahmed Faiz. Thanks to my sister, Atiya, I had the privilege of meeting her after a concert once in New York City, and she was as imperious and gracious as I had imagined she would be.
UPDATE 4/27/09: There's a very informative post about Iqbal Bano by Fawad Zakaria here.
Here I have chosen a few videos of her, beginning and ending with poems by Faiz: