classical song??

does anyone know who sang the song which reema (actress) performed a classical dance on, at some concert??? the same song was used by meera when she performed at the bollywood awards in the u.s. not 2 long ago. all i know is the following:, its a semi-classical song, some woman sang it, and it was definately a pakistani song.

who exactly sang it and where can i get it!? help would be greatly appreciated...