Christina Aguilera: Life in pictures

Her 1999 debut album, “Christina Aguilera,” included mega-hits like “Genie in a Bottle,” “What a Girl Wants” and “Come on Over.” It was pop at its poppiest; in all its belly-baring, blond-haired goodness.  (Lori Shepler / Los Angeles Times)

Aguilera, (back, right) partnered with singers Pink (left), Mýa (center) and Lil’ Kim to cover Patti Labelle‘s 1975 single “Lady Marmalade” for Baz Luhrmann‘s 2001 film “Moulin Rouge.”  (Lawrence K. Ho / Los Angeles Times)

Aguilera, right, and fellow pop star Britney Spears each famously shared an on-stage smooch with Madonna (center) after they sang her hit “Like a Virgin” at the 2003 MTV Video Music Awards.  (Scott Gries / Getty Images)

Aguilera dropped the braids and midriff tops and went for a Marilyn Monroe-inspired hairdo and bright red lips, which better reflected the third album’s old Hollywood style and jazz-inspired tunes. The single “Ain’t No Other Man” rocked the charts.  (Kevin Winter / Getty Images)