Grammy Nominations Concert

Christina Aguilera

December 3, 2008: Christina Aguilera arrives at the Grammy Nominations concert live held at the Nokia Theatre LA Live in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)

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Christina Aguile... See how Christina Aguilera has changed through the years.
Best New Artist Feb. 23, 2000: Christina Aguilera reacts as she accepts her Grammy for Best New Artist at the 42nd annual Grammy Awards at the Staples Center in Los Angeles. (AP Photo/Kevork Djansezian)
MTV Video Music ... Sept. 7, 2000: Pop stars Britney Spears, left, and Christina Aguilera introduce Whitney Houston at the 2000 MTV Video Music Awards Thursday, at Radio City Music Hall in New York. (AP Photo/Suzanne Plunkett)
Blockbuster Awar... April 10, 2001: Pop singer Christina Aguilera accepts her award for favorite female artist of the year from presenter Michael Clarke Duncan at the Seventh Annual Blockbuster Awards in Los Angeles. (AP Photo/Michael Caulfield)
MTV Movie Awards June 2, 2001: Singer Christina Aguilera blows a kiss for photographers as she arrives for the 2001 MTV Movie Awards in Los Angeles. (AP Photo/Kevork Djansezian)
Lady Maramalade Feb. 27, 2002: Pink, Christina Aguilera and Mya hold their awards after winning for best pop collaboration with vocals for the song "Lady Maramalade" from the movie "Moulin Rouge" at the 44th annual Grammy Awards in Los Angeles. (AP Photo/Reed Saxon)
Grammy Party Feb. 27, 2002: Music Recording Artist Christina Aguilera arrives at the BMG post Grammy Party, in West Hollywood, Calif. (AP Photo/Ashley Jones)
MTV Video Music ... Aug. 29, 2002: Christina Aguilera arrives at Radio City Music Hall for the MTV Video Music Awards in New York. When she was a little girl, Aguilera wasn't allowed to get her ears pierced. Now, the 21-year-old singer has 11 piercings ---in he ears, nose, lower lip, and some very private places. She says she started the piercings when she was on tour afer her first album and they're part of a new look that's far from her earlier squeaky-clean, Micky Mouse Club image. (AP Photo/Tina Fineberg)
MTV Europe Nov. 6, 2003: Christina Aguilera holds her MTV Europe music award in Edinburgh, Scotland, the award was for best female act of the 2003 awards. (AP Photo/Sang Tan)
US Weekly Young ... Sept. 16, 2005: Christina Aguilera, left, and Eva Longoria arrive for the US Weekly Young Hollywood Hot 20 party at LAX in the Hollywood section of Los Angeles, Calif. (AP Photo/Phil McCarten)
MTV Video Music ... Aug. 31, 2006: Christina Aguilera arrives to the 2006 MTV Video Music Awards in New York. (AP Photo/Stephen Chernin)
Rock The Vote September 25, 2008: Christina Aguilera arrives at 'Rock The Vote' Hosted by Christina Aguilera held at the Esquire House Hollywood Hills in Los Angeles, California. (Photo by Frazer Harrison/Getty Images for Esquire )
Africa Rising Fe... October 14, 2008: Christina Aguilera attends the Africa Rising Festival at the Royal Albert Hall in London, England. (Photo by Dan Kitwood/Getty Images)
American Music A... November 23, 2008: Christina Aguilera arrives at the 2008 American Music Awards held at Nokia Theatre L.A. LIVE in Los Angeles, California. (Photo by David Livingston/Getty Images for AMA)
Grammy Nominatio... December 3, 2008: Christina Aguilera arrives at the Grammy Nominations concert live held at the Nokia Theatre LA Live in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)
Beautiful Feb. 8, 2004: Christina Aguilera holds the award for best female pop vocal performance award for "Beautiful" from her "Stripped" album at the 46th Annual Grammy Awards, in Los Angeles. (AP Photo/Reed Saxon)
DSquared June 29, 2004: Singer Christina Aguilera, wearing a leather dress, performs during DSquared's mens' fashion collection for the spring-summer 2005, unveiled in Milan, Italy. (AP Photo/Antonio Calanni)
Bombay, India Dec. 1, 2004: Pop singer Christina Aguilera poses for the media on her arrival in Bombay, India. Aguilera is on four-day visit to India. (AP Photo/Rajesh Nirgude)
Red Carpet Ready June 3, 2006: Christina Aguilera arrives at the 2006 MTV Movie Awards in Culver City, Calif. (AP Photo/Matt Sayles)
MTV Movie Awards... June 3, 2006: Christina Aguilera performs during the 2006 MTV Movie Awards in Culver City, Calif. (AP Photo/Chris Carlson)
The 'Must List' June 22, 2006: Singer Christina Aguilera arrives for the Entertainment Weekly's annual celebration of their "must list" summer issue. (AP Photo/ Louis Lanzano)
Marquee Club March 23, 2007: In this photo provided by Marquee, singer Christina Aguilera arrives to the party after her New York concert at the Marquee club, Friday. (AP Photo/Dave Allocca, Marquee)
News Conference June 25, 2007: American singer Christina Aguilera speaks during the news conference Monday in Shanghai, China. (AP Photo)
Back to Basics June 28, 2007: U.S. singer Christina Aguilera performance during her "Back to Basics" tour in Bangkok, Thailand. (AP Photo)
Primetime Emmy A... Sept. 16, 2007: Singer Christina Aguilera arrives at the 59th Primetime Emmy Awards at the Shrine Auditorium in Los Angeles. (AP Photo/Chris Pizzello)
DVD Signing Feb. 5, 2008: Singer Christina Aguilera talks with a fan at a DVD signing event in West Hollywood, Calif. (AP Photo/Dan Steinberg)
Christina Aguile... Feb. 9, 2008: Singer Christina Aguilera poses on the press line at the opening gala celebration of the Broad Contemporary Art Museum at LACMA in Los Angeles. (AP Photo/Dan Steinberg)
Christina Aguile... August 23, 2008: Singer Christina Aguilera arrives at the Nakheel Introduces Trump International Hotel and Tower Dubai party featuring a performance by Christina Aguilera at The Tar Estate, Bel Air, California. (Photo by Frazer Harrison/Getty Images)
Christina Aguile... September 02, 2008: Singer Christina Aguilera launches her new fragrance 'Inspire' at Macy's Herald Square in New York City. (Photo by Stephen Lovekin/Getty Images)
Christina Aguile... September 7, 2008: Singer Christina Aguilera arrives at the 2008 MTV Video Music Awards at Paramount Pictures Studios in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)
Christina Aguile... September 7, 2008: Singer Christina Aguilera performs on stage at the 2008 MTV Video Music Awards at Paramount Pictures Studios in Los Angeles, California. (Photo by Kevin Winter/Getty Images)
BeautyLIGHT November 10, 2008: Singer Christina Aguilera attends Louis XIII Black Pearl's book party for Matthew Rolston's 'BeautyLIGHT' at the Wallis Annenberg Cultural Center in Beverly Hills, California. (Photo by Charley Gallay/Getty Images)
Nokia Theatre November 23, 2008: Singer Christina Aguilera performs during the 2008 American Music Awards held at Nokia Theatre L.A. LIVE in Los Angeles, California. (Photo by Kevin Winter/Getty Images for AMA)
Grammy Nominatio... December 3, 2008: Singer Christina Aguilera arrives at the Grammy Nominations concert live held at the Nokia Theatre LA Live in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)
Inspire December 5, 2008: Recording artist Christina Aguilera poses for photographers during an autograph session and the launch of her new perfume 'Inspire' at Macy's Glendale Galleria in Glendale, California. (Photo by Frederick M. Brown/Getty Images)
Perez Hilton Par... March 28, 2009: Singer Christina Aguilera, left, and Perez Hilton pose together at Perez Hilton's 31st Birthday Party. (AP Photo/Matt Sayles)
An Evening with ... April 24, 2009: Singer Christina Aguilera performs at the Los Angeles Gay and Lesbian Center's "An Evening with Women: Celebrating Art, Music and Equality."(AP Photo/Chris Pizzello)
On The Record June 4, 2010: Christina Aguilera is seen during the taping of "On The Record" in Beverly Hills, Calif. (Photo: Fuse)
Power of Women L... September 24, 2009: Christina Aguilera arrives at Variety's 1st Annual Power of Women Luncheon at the Beverly Wilshire Hotel in Beverly Hills, California. (Photo by Jason Merritt/Getty Images)
Golden Globe Awa... Jan. 17, 2010: Presenter Christina Aguilera poses at the 67th Annual Golden Globe Awards. (AP Photo/Mark J. Terrill)
Today Show June 8, 2010: Christina Aguilera performs on the NBC "Today" television program. (AP Photo/Richard Drew)
NBA Finals June 17, 2010: Christina Aguilera sings the national anthem before Game 7 of the NBA basketball finals between the Los Angeles Lakers and the Boston Celtics. (AP Photo/Jae C. Hong)
Global Launch Sept. 12, 2010: Singer Christina Aguilera attends the global launch of the Montblanc John Lennon edition writing instrument, in New York.
Grand Opening Ga... Sept. 25, 2010: Singer Christina Aguilera arrives at the LACMA Resnick Exhibition Pavilion grand opening gala in Los Angeles. (AP Photo/Dan Steinberg)