In ''baby one more time'' is her real voice . this is the way that she sings .When she starts singing ''sometimes'' she starts to use the ''baby voice'' that label wanted!! kinda sad!!! Her voice was amazing the way it was!!
With the proper training and a great vocal coach, she could've been an amazing singer but instead she damaged her voice with improper use, terrible technique and of course, smoking. A shame.
Spears apologists point to the difficulty of dancing and singing live on stage simultaneously, although Lady Gaga has demonstrated it is possible, while Pink sings live while hanging upside down.