Efectivamente se puso tetas y luego se las quitó. Esto salió en Rolling Stone
As a teen, the singer's mother, Lynne, allowed her to get breast implants. But after going under the knife, "she regretted the implants, particularly because her chest was still growing," a friend says. "When her natural breasts became larger, she had the implants removed." But Spears kept the surgery a secret. Adds the friend, "When other girls did their boobs [they admitted it] and moved on, but Britney was brought up to lie about herself.
http://www.rollingstone.com/music/news/the-tragedy-of-britney-spears-rolling-stones-2008-cover-story-20080221
