Photos of singer-actress Hilary Duff.

Credit: Getty Images / Stephen Lovekin

Actress Hilary Duff attends the premiere of TV Land's "Younger" at Landmark Sunshine Cinema on March 31, 2015 in New York City.

Credit: Getty Images for Viacom / Imeh Akpanudosen

Actress Hilary Duff speaks onstage during the Viacom Winter Television Critics Association (TCA) press tour at The Langham Huntington Hotel and Spa on Jan. 10, 2015 in Pasadena, California.

Credit: Getty Images / Ben Gabbe

Actress Hilary Duff (L) and Elvis Duran at "The Elvis Duran Z100 Morning Show" at Z100 Studio on Sept. 24, 2014 in New York City.

Credit: Getty Images / Theo Wargo

(L-R) Actress/recording artist Hilary Duff, radio personality Elvis Duran and recording artist Meghan Trainor attend the 2014 iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 20, 2014 in Las Vegas, Nevada.

Credit: Getty Images for SiriusXM / Chelsea Lauren

Singer Hilary Duff attends SiriusXM Hits 1's The Morning Mash Up Broadcast at SiriusXM Studios on Aug. 27, 2014 in Los Angeles, California.

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Actress Hilary Duff at the world-premiere of "Disney's Planes" presented by Target at the El Capitan Theatre on Aug. 5, 2013 in Hollywood, California.

Credit: Getty Images for Target / John Sciulli

Actress Hilary Duff and son Luca Cruz Comrie at the world-premiere of "Disney's Planes" presented by Target at the El Capitan Theatre on Aug. 5, 2013 in Hollywood, California.

Credit: Getty Images / Angela Weiss

Actress/singer Hilary Duff signs copies of her new book 'True' at Mrs. Nelson's Toy & Book Shop on April 16, 2013 in La Verne, California.

Credit: Getty Images For March Of Dimes / Michael Buckner

Actress Hilary Duff and NHL player Mike Comrie attend the 7th Annual March of Dimes Celebration of Babies, a Hollywood Luncheon, at the Beverly Hills Hotel on Dec. 7, 2012 in Beverly Hills, California.

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Actress Hilary Duff attends Bing Summer of Doing Kickoff hosted by Bing and DoSomething.org at HOLA at Heart of Los Angeles on June 1, 2012 in Los Angeles, California.

Credit: Getty Images / Rick Diamond

Recording Artist/Actress Hilary Duff helps pack backpacks at Bethune Elementary School in support of the "Blessings in a Backpack" program on March 21, 2011 in Atlanta, Georgia.

Credit: Getty Images / Pascal Le Segretain

Hilary Duff presents her book at Hotel Costes on Feb. 3, 2011 in Paris, France.

Credit: Getty Images / Alberto E. Rodriguez

Actress Hilary Duff and designer Max Azria arrive at the Herve Leger by Max Azria Collection Launch party held at Live! on Sunset on May 6, 2009 in West Hollywood, California.

Credit: Getty Images / Timothy A. Clary

Hilary Duff poses on the Observation Deck after flipping the switch to light the Empire State Building on May 14 , 2009 in a special event to honor the 24th annual AIDS Walk New York, of which Hilary is a part.

Credit: Getty Images / Frazer Harrison

Actress Hilary Duff arrives at the Grand Opening of the new SLS Hotel at Beverly Hills on Dec. 4, 2008 in Los Angeles, California.

Credit: Getty Images / Frazer Harrison

Actress Hilary Duff arrives at the Grand Opening of the new SLS Hotel at Beverly Hills on Dec. 4, 2008 in Los Angeles, California.

Credit: Getty Images / Stephen Lovekin

Actress/singer Hilary Duff attends a Nina Footwear and Blessings In a Backpack event at P.S. 15, Roberto Clemente Elementary School on Oct. 24, 2008 in New York City.

Credit: Getty Images / Alberto E. Rodriguez

Singer Hilary Duff hosts the City of Hope Spirit of Life Award dinner Honoring Disney Music Group Chairman Bob Cavallo held on Sept. 27, 2007 in Los Angeles, California.

Credit: Getty Images / Scott Gries

Singer/actress Hilary Duff performs onstage during the NBC "Today Show" concert series at Rockefeller Center on June 29, 2007 in New York City.

Credit: Getty Images / Kevin Winter

Singer/actress Hilary Duff poses next to the toy pedal car (designed by Elton John) at the 17th Annual Mercedes-Benz Carousel of Hope cocktail party at the Beverly Hilton Hotel on Oct. 28, 2006 in Beverly Hills, California. The celebrity designed child-sized pedal cars are being auctioned off to benefit the Children's Diabetes Foundation.

Credit: Getty Images / Peter Kramer

Actors Haylie Duff (left) and Hilary Duff (right) with their mother Susan Duff attend the after party for the premiere Of "Material Girls" at Pink Elephant on Aug. 14, 2006 in New York City.

Credit: Getty Images / Kevin Winter

Actress Hilary Duff attends the Los Angeles premiere of "Cheaper By The Dozen 2" at the Mann Village Theatre Dec. 13, 2005 in Westwood, California.

Credit: Getty Images / Frazer Harrison

Actress Hilary Duff, poses with a one of a kind Mattel doll made in her likeness at the 12th Annual Dream Halloween Fundraiser held at Santa Monica Airport Oct. 29, 2005 in Santa Monica, California.

Credit: Getty Images / Patrick Riviere

Singer/actress Hilary Duff attends a dual press conference and photo shoot for her latest album "Hilary Duff" and her new film "Raise Your Voice" at the Intercontinental Hotel, on Oct. 25, 2004 in Sydney, Australia.

Credit: Getty Images / Amanda Edwards

Actress Hilary Duff attends the "People We Know, Horses They Love" book launch party, on Sept. 21, 2004 at Hotel Casa Del Mar in Santa Monica, California.

Credit: Getty Images / Evan Agostini

Actress Hilary Duff guest hosts on MTV's TRL at the MTV Studios May 1, 2003 in New York City.

Credit: Getty Images / Robert Mora

Hilary Duff at Nickelodeon's 16th Annual Kid's Choice Awards at the Barker Hangar, April 12, 2003 in Santa Monica, California.

Credit: Getty Images / Frazer Harrison

Actors Frankie Muniz and Hilary Duff arrive for the premiere of the film 'Agent Cody Banks' at the Mann Village Theatre on March 8, 2003, Westwood, California.

Credit: Getty Images / Robert Mora

Singer Hilary Duff attends the 30th Annual American Music Awards (AMA) at the Shrine Auditorium on Jan. 13, 2003 in Los Angeles, California.

Credit: AP / Krista Niles

Teen-age actress Hilary Duff, who plays the title role in Disney Channel's "Lizzie McGuire," poses in Lizzie's bedroom on the show's set in the Hollywood section of Los Angeles on March 19, 2002. Following taping of her show, Duff, 14, must include several hours of lessons in her working day.

Credit: Getty Images / Frederick M. Brown

Actress Hilary Duff attends the Youth, Improving Non-Profit for Children Awards March 4, 2002 in Los Angeles, CA. Former NBA basketball player Earvin 'Magic' Johnson, actor Jim Belushi and former boxer Sugar Ray Leonard were honored at the event.

Credit: Getty Images / Gabe Palacio

Hilary Duff, the star of the ABC/Disney Channel show "Lizzie McGuire", presented the Children and Young People award to Barbara Kennedy and Susan Rodgers of Canada for "Streets Cents - Episode 4" at the 29th International Emmy Awards in New York City on Nov. 19, 2001.

Credit: Getty Images / Sebastian Artz

Actress Hilary Duff, left, and her sister musician Haley Duff attend the '2001 Bogart Backstage' fundraiser for children with cancer, leukemia and AIDS Nov. 11, 2001 in Santa Monica, CA.

Credit: Getty Images / John Sciulli

Actress/singer Hilary Duff attends The 2017 InStyle and Warner Bros. 73rd annual Golden Globe Awards post-party at The Beverly Hilton Hotel on Jan. 8, 2017, in Beverly Hills, California.

Credit: Getty Images / Matt Winkelmeyer

Actress Hilary Duff records onstage during the "The Love Bomb" podcast at Entertainment Weekly's PopFest at The Reef on Oct. 30, 2016 in Los Angeles, California.

Credit: Getty Images / Angela Weiss

Actress Hilary Duff attends the "Younger" season 3 and "Impastor" season 2 New York premiere at Vandal on Sept. 27, 2016 in New York City.

Credit: Getty Images / Craig Barritt

Actress Hilary Duff joins Stella Artois to help kick-off a summer of hosting memorable moments in New York City on June 23, 2016.

Credit: Getty Images

Singer Hilary Duff promotes "Elixir" at Borders Books & Music, Columbus Circle in Manhattan on Oct. 11, 2010.

Credit: Getty Images

Actress/singer Hilary Duff attends the 6th Annual BGC Charity Day at BGC Partners Inc. in Manhattan on Sept. 13, 2010.

Credit: Getty Images

Actress Hilary Duff and NHL player Mike Comrie pose in the press room at the 2010 Teen Choice Awards held at the Gibson Amphitheatre on Aug. 8, 2010 in Universal City, California.

Credit: Getty Images

Actress Hilary Duff attends the "Love, Loss, and What I Wore" new cast member celebration at 44 1/2 in Manhattan on July 1, 2010.

Credit: Getty Images

Actors Haylie Duff, Nick Zano, Hilary Duff and hockey player Mike Comrie attend the "Love, Loss, and What I Wore" new cast member celebration at 44 1/2 in Manhattan on July 1, 2010.

Credit: Getty Images

Hilary Duff and Mike Comrie attend Game 1 of the Western Conference Finals between the Phoenix Suns and the Los Angeles Lakers during the 2010 NBA Playoffs at Staples Center on May 17, 2010.

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