last night i was listenin to donny hathaways version of a song for u. and theres this piano part n it that sounds exactly like this part in impossible ( its a song on christina aguilera's album that alicia wrote and compoed) as soon as i heard that i thought omg! that sounds like the beginning of impossible! so i listened to impossible to make sure and i was right...am i the only one who noticed this?....so then i read the liner notes..written, composed, produced and arranged by alicia keys...she didn't even give donny or his pianist credit!