The undisputed voice of POP? LMAO, to be the VOICE one needs more than 3 notes in her throat - 2 of which she constantly screams and the other one, she whispers in a foggy manner.

If anyone is the undisputed VOICE is WHITNEY HOUSTON forever and ever for aeons and eternity. And if we talk about who is the only true vocalist doing her thing in pop music? BEYONCE! all the other can have a seat.