Christina Aguilera arrives at the first annual Latin Grammy Awards at the Staples Center. Her look was conceived by stylist Trish Summerville. (Genaro Molina / Los Angeles Times)
Christina Aguilera arrives at the premiere of the Eminem-starring film “8 Mile.” (Kevork Djansezian / Associated Press)
Christina Aguilera rocks during her set at Wango Tango. (Richard Hartog / Los Angeles Times)
Christina Aguilera at the MTV Movie Awards. (Frank Micelotta / Getty Images)
Christina Aguilera with her Grammy during coverage of the 49th Annual Grammy awards. (Myung J. Chun / Los Angeles Times)
Cher and Christina Aguilera at the 67th Annual Golden Globe Awards. (Kirk McKoy / Los Angeles Times)
Christina Aguilera arrives for the British Gala Premiere of “Burlesque,” in which she starred with Cher. (Jorge Herrera / Associated Press)
Christina Aguilera arrives for the 68th annual Golden Globe awards. (Robyn Beck / AFP / Getty Images)
Christina Aguilera poses for pictures prior to a news conference at the Sao Paulo Fashion Week. (Andre Penner / Associated Press)
Christina Aguilera attends NBCUniversal’s “The Voice” press junket. (Christopher Polk /Getty Images)