Former Pittsburgh resident Christina Aguilera sings the national anthem before the Pittsburgh Pirates' home opener in Pittsburgh on April 4, 2000. Photo by Stephen Gross/UPI | License Photo
Aguilera signs autographs in Vancouver on July 20, 2000. Photo by H. Ruckemann/ UPI | License Photo
Aguilera attends the MTV Video Music Awards in New York City on September 7, 2000. A few days prior, Aguilera canceled a performance at the New York State Fair after losing her voice. Photo by Laura Cavanaugh/UPI | License Photo
Aguilera won Best Female Artist at the Billboard Music Awards in Las Vegas on December 5, 2000. Photo by Russ Einhorn/STAR MAX/UPI | License Photo
Left to right, Pink, Lil Kim and Aguilera win Best Video of the Year and Best Video From a Film for their music video "Lady Marmalade" at the MTV Video Music Awards in New York City on September 6, 2001. The song also won a Grammy. Photo by Ezio Petersen/UPI | License Photo
Aguilera poses at the MTV Video Music Awards in New York City on August 29, 2002. Earlier that year, Aguilera performed at the closing ceremony for the Winter Olympics. Photo by Laura Cavanaugh/UPI | License Photo
Aguilera arrives at the MTV Video Music Awards in New York City on August 28, 2003. She performed with Madonna and Britney Spears. Photo by Laura Cavanaugh/UPI | License Photo
Aguilera arrives for the premiere of "Shark Tale," for which she performs on the soundtrack, in New York City on September 27, 2004. Earlier that year, Aguilera urged young Americans to vote in the 2004 election. Photo by Ezio Petersen/UPI | License Photo
Aguilera performed at the taping of the MTV Movie Awards in Culver City, Calif., on June 3, 2006. The following month, Aguilera was included on a survey MTV conducted for its 25th anniversary ranking the most influential artists. Photo by Jim Ruymen/UPI | License Photo
Aguilera performs at the Summer Concert series in New York City on August 18, 2006. A few days later her new album, "Back to Basics," debuted at No. 1. Photo by Ezio Petersen/UPI | License Photo
Aguilera performed at the Fashion Rocks concert to kick off of New York Fashion Week in New York City on September 7, 2006. Later that year, Aguilera performed at the New Year's Eve "Rockin' Eve" show. Photo by Laura Cavanaugh/UPI | License Photo
Aguilera won Best Female Pop Vocal Performance for "Ain't No Other Man" at the Grammy Awards in Los Angeles on February 11, 2007. Photo by Phil McCarten/UPI | License Photo
Tony Bennett (L) and Aguilera perfrom the song "Steppin' Out" during the Primetime Emmy Awards in Los Angeles on September 16, 2007. Earlier that year, Aguilera was featured in Maxim's Hot 100 list. Photo by Jim Ruymen/UPI | License Photo
Aguilera arrives at the MTV Video Music Awards in Los Angeles on September 7, 2008. The next month, Aguilera's song "Keeps Getting Better" came in the Top 10 Billboard record chart. Photo by Jim Ruymen/UPI | License Photo
Aguilera arrives at "The Grammy Nominations Concert Live! Countdown to Music's Biggest Night" in Los Angeles on December 3, 2008. The following spring, Aguilera was featured in People's "Most Beautiful" issue. Photo by Jim Ruymen/UPI | License Photo
Christina Aguilera performs on "Today" in New York City on June 8, 2010. Photo by John Angelillo/UPI | License Photo
Aguilera sits with her star during a ceremony unveiling her star on the Hollywood Walk of Fame in Los Angeles on November 15, 2010. Photo by Jim Ruymen/UPI | License Photo
Cast members Cher (L) and Aguilera attend the premiere of "Burlesque," in Los Angeles on November 15, 2010. The film took in $11.8 million in its first weekend. Photo by Jim Ruymen/UPI | License Photo
Aguilera arrives at the Golden Globes Awards in Beverly Hills, Calif., on January 16, 2011. Later that year, Aguilera joined "The Voice" as a coach. Photo by Jim Ruymen/UPI | License Photo
Aguilera performs at the American Music Awards in Los Angeles on November 18, 2012. Photo by Phil McCarten/UPI | License Photo
Aguilera arrives at the TIME 100 Gala in New York City on April 23, 2013. The following month, Aguilera debuted a new music video duet with Alejandro Fernandez. Photo by Monika Graff/UPI | License Photo
Aguilera performs at the American Music Awards in Los Angeles on November 24, 2013. The next month, Aguilera teamed up for a duet with Lady Gaga on "The Voice." Photo by Jim Ruymen/UPI | License Photo
Cast member Aguilera (R), the voice of Akiko Glitter in "The Emoji Movie" attends the premiere with her fiance Matt Rutler (R) and their daughter Summer Rain Rutler (C) and her son Max Liron Bratma in Los Angeles on July 23, 2017. Photo by Jim Ruymen/UPI | License Photo
Aguilera arrives for the Billboard Music Awards in Las Vegas on May 20, 2018. That month, Aguilera announced her departure as a coach on "The Voice" after six seasons. Photo by Jim Ruymen/UPI | License Photo
Aguilera performs in the rain on "New Year's Rockin' Eve" in Times Square in New York City on December 31, 2018. Photo by John Angelillo/UPI | License Photo
Aguilera performed at the American Music Awards in Los Angeles on November 24, 2019. Earlier that year, she began her residency in Las Vegas. Photo by Jim Ruymen/UPI | License Photo
Aguilera sings "Ave Maria" in Italian during the Celebration of Life for Kobe and Gianna Bryant memorial ceremony in Los Angeles on February 24, 2020. Photo by Jim Ruymen/UPI | License Photo
Aguilera attends the premiere of "Mulan" in Los Angeles on March 9, 2020. Aguilera returned to the soundtrack to reprise "Reflection," as well as a new song, "Loyal, Brave, True." Photo by Jim Ruymen/UPI | License Photo
