Disney to "Dirrty" Is she still the girl next door? Should she be? Naughty Christina explains. music_aguilera_christina.jpg 60x45 home http://abcnews.go.com/sections/2020/videofiles/Video/030214aguilera_video.ram 10455027872400 abcnews_free.gif lock_icon.gif superpass.gif http://abcnews.go.com/sections/2020/videofiles/Video/030214aguilera_video.ram 10455027872401 GO lock_icon.gif lock_icon.gif lock_icon.gif headline