Jennifer Love Hewitt makes her first red carpet appearance in 4 years to promote Fox's '9-1-1'

Jennifer Love Hewitt is back!

After several years out of the spotlight, Jennifer made her return Monday for the FOX Upfronts to promote "9-1-1" -- she's joined the show for its the second season, an exciting cast development after the exit of Connie Britton.

After Jennifer starred in "Criminal Minds" in 2015, she seemingly retreated from Hollywood around that time: Photo archives indicate she hasn't stepped foot on a red carpet in four years. Her last major appearance was for a CBS press tour in July 2014.

See Jennifer Love Hewitt in 2018:

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Jennifer Love Hewitt in 2018
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Jennifer Love Hewitt in 2018
NEW YORK, NY - MAY 14: Jennifer Love Hewitt attends the 2018 Fox Network Upfront at Wollman Rink, Central Park on May 14, 2018 in New York City. (Photo by Roy Rochlin/Getty Images)
NEW YORK, NY - MAY 14: Jennifer Love Hewitt attends 2018 Fox Network Upfront at Wollman Rink, Central Park on May 14, 2018 in New York City. (Photo by John Lamparski/WireImage)
NEW YORK, NY - MAY 14: Actress Jennifer Love Hewitt attends the 2018 Fox Network Upfront at Wollman Rink, Central Park on May 14, 2018 in New York City. (Photo by Dia Dipasupil/Getty Images)
NEW YORK, NY - MAY 14: Jennifer Love Hewitt attends 2018 Fox Network Upfront at Wollman Rink, Central Park on May 14, 2018 in New York City. (Photo by John Lamparski/WireImage)
NEW YORK, NY - MAY 14: Actress Jennifer Love Hewitt attends the 2018 Fox Network Upfront at Wollman Rink, Central Park on May 14, 2018 in New York City. (Photo by Dia Dipasupil/Getty Images)
NEW YORK, NY - MAY 14: Actress Jennifer Love Hewitt attends the 2018 Fox Network Upfront at Wollman Rink, Central Park on May 14, 2018 in New York City. (Photo by Dia Dipasupil/Getty Images)
NEW YORK, NY - MAY 14: Actress Jennifer Love Hewitt attends the 2018 Fox Network Upfront at Wollman Rink, Central Park on May 14, 2018 in New York City. (Photo by Dia Dipasupil/Getty Images)
NEW YORK, NY - MAY 14: Jennifer Love Hewitt is seen on May 14, 2018 in New York City. (Photo by JNI/Star Max/GC Images)
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It's likely that the mom of two was taking these past few years to be with her young children. She and husband Brian Hallisay welcomed daughter Autumn in 2013 and son Atticus in 2015.

For her return via the FOX Upfronts, Jennifer kept things classic and sleek in a fitted black pantsuit, which she paired with a gold necklace and beachy waves. At 39 years old, she manages to have that teenage glow! See for yourself -- take a look at her then and now.

RELATED: See Jennifer Love Hewitt through the years

42 PHOTOS
Jennifer Love Hewitt through the years
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Jennifer Love Hewitt through the years
UNITED STATES - SEPTEMBER 15: MCKENNA - Season One - 9/15/94, For more than 20 years, McKenna Outfitters has been taking guests on outdoor tours through the Central Oregon wilderness. Two years after the accidental death of his brother, Brick McKenna returned home to make amends and run the family business with his father, Jack, Guy's widow, Leigh, her two children, Harry and Rose, and Brick's sister, Cassidy (Jennifer Love Hewitt, pictured)., (Photo by Bob D'Amico/ABC via Getty Images)
UNITED STATES - MARCH 07: Jennifer Love Hewitt (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - MARCH 07: Jennifer Love Hewitt (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - MARCH 07: Jennifer Love Hewitt (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - MARCH 07: Jennifer Love Hewitt (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - MARCH 07: Jennifer Love Hewitt (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - MARCH 07: Jennifer Love Hewitt (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - MARCH 07: Jennifer Love Hewitt (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - MARCH 07: Jennifer Love Hewitt (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - MARCH 07: Jennifer Love Hewitt (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - JULY 20: MCKENNA - 'Journey of Courage' - 7/20/95, Cassidy (Jennifer Love Hewitt) steps in for Jack and secretly joined a young man to climb Widows peak., (Photo by ABC Photo Archives/ABC via Getty Images)
HOLLYWOOD, CA - DECEMBER 8: Actress Jennifer Love Hewitt attends the Sixth Annual Disney's American Teacher Awards on December 8, 1996 at the Pantages Theatre in Hollywood, California. (Photo by Ron Galella, Ltd./WireImage)
(EXCLUSIVE, Premium Rates Apply) Jennifer Love Hewitt (Photo by Jeff Kravitz/FilmMagic)
CENTURY CITY, CA - SEPTEMBER 30: Actress Jennifer Love Hewitt attends the 'That Thing You Do' Century City Premiere on September 30, 1996 at the Cineplex Odeon Century Plaza Cinemas in Century City, California. (Photo by Ron Galella, Ltd./WireImage)
1998 Jennifer Love Hewitt Stars In 'Party Of Five.' (Photo By Getty Images)
(Original Caption) Portrait of Jennifer Love Hewitt, who plays Julie James in the film. (Photo by Frank Trapper/Corbis via Getty Images)
WESTWOOD, CA - NOVEMBER 11: MTV personality Carson Daly and actress Jennifer Love Hewitt attend the 'I Still Know What You Did Last Summer' Westwood Premiere on November 11, 1998 at the Mann National Theatre in Westwood, California. (Photo by Ron Galella, Ltd./WireImage)
(Original Caption) The actress Jennifer Love Hewitt. (Photo by Frank Trapper/Corbis via Getty Images)
NEW YORK CITY - DECEMBER 6: Actress Jennifer Love Hewitt attends the Metropolitan Museum of Art's Costume Institute Gala Exhibiton of 'Rock Style' on December 6, 1999 at the Metropolitan Museum of Art in New York City. (Photo by Ron Galella/WireImage)
Jennifer Love Hewitt (Photo by SGranitz/WireImage)
Jennifer Love Hewitt (Photo by SGranitz/WireImage)
Jennifer Love Hewitt (Photo by DMIPhoto/FilmMagic)
UNIVERSAL CITY, CA - AUGUST 12: Actress Jennifer Love Hewitt attends the Third Annual Teen Choice Awards on August 12, 2001 at the Universal Amphitheatre in Universal City, California. (Photo by Ron Galella, Ltd./WireImage)
Actress Jennifer Love Hewitt during the opening of the Harrods January Sale, at Harrods in Knightsbridge, London. (Photo by Yui Mok - PA Images/PA Images via Getty Images)
Jennifer Love Hewitt (Photo by Mark Sullivan/WireImage)
Jennifer Love Hewitt (Photo by Mark Sullivan/WireImage)
WESTWOOD, CA. - JANUARY 07: Actress Jennifer Love Hewitt arrives at the premiere of '27 Dresses' at the Mann Village Theatre on January 7, 2007 in Westwood, California. (Photo by Jeffrey Mayer/Wireimage)
LOS ANGELES - DECEMBER 24: Actress Jennifer Love Hewitt attends Christmas Eve at the Los Angeles Mission December 24, 2007 in Los Angeles, California. (Photo by David Livingston/Getty Images)
LOS ANGELES, CA - OCTOBER 19: Actor Jennifer Love Hewitt arrives at Spike TV's 'Scream 2007' held at The Greek Theatre on October 19, 2007 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
Actress Jennifer Love Hewitt and actor Jamie Kennedy arrive at the Los Angeles Premiere jk'The Twilight Saga: New Moon' at Mann Bruin Theatre on November 16, 2009 in Westwood, California. (Photo by Jon Kopaloff/FilmMagic)
Actress Jennifer Love Hewitt attends the Children's Institute ''Poker For A Cause'' Celebrity Poker Tournament at Commerce Casino on October 17, 2009 in City of Commerce, California.
LAS VEGAS - OCTOBER 03: Actress Jennifer Love Hewitt attends the TAO and LAVO anniversary weekend held at TAO in the Venetian Resort Hotel Casino on October 3, 2009 in Las Vegas, Nevada. (Photo by Jamie McCarthy/WireImage)
LOS ANGELES, CA - SEPTEMBER 20: Jennifer Love Hewitt attends 61st Annual Primetime Emmy Awards - Arrivals at Nokia Theatre LA Live on September 20, 2009 in Los Angeles, California. (Photo by DAVID CROTTY/Patrick McMullan via Getty Images)
LOS ANGELES, CA - DECEMBER 14: Actress Jennifer Love Hewitt arrives at Disney On Ice presents Disney Pixar's 'Toy Story 3' Disney On Ice Presents Pixar's 'Toy Story 3' at Nokia Plaza L.A. LIVE on December 14, 2011 in Los Angeles, California. (Photo by Paul Redmond/WireImage)
NEW YORK, NY - AUGUST 21: Actress Jennifer Love Hewitt attends the Pampers Love, Sleep & Play campaign launch at Vanderbilt Hall at Grand Central Terminal on August 21, 2013 in New York City. (Photo by Jim Spellman/WireImage)
BURBANK, CA - JULY 13: Actress Jennifer Love Hewitt attends the 'Mickey Through The Decades' collection celebration at Walt Disney Studios on July 13, 2013 in Burbank, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES - FEBRUARY 4: 'Scream' -- Victims in California have the BAU searching for an UnSub who may have witnessed abuse as a child. Meanwhile, Kate shows parental concern when her niece, Meg, makes a date with a friend to meet a boy they met online, on CRIMINAL MINDS, Wednesday, Feb. 11 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Greg Grunberg ('Felicity,' 'Lost') guest stars as Kate's husband, Chris Callahan. Pictured: Jennifer Love Hewitt as Kate Callahan. (Photo by CBS via Getty Images)
LOS ANGELES - JANUARY 9: 'Lockdown' -- When two guards at a privatized maximum security prison in Texas are murdered, the BAU suspects that more than one UnSub within the prison could be at work, on CRIMINAL MINDS, Wednesday, March 4 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Series star Thomas Gibson directed the episode. William Ragsdale ('Justified,' 'Herman's Head') guest stars as prison captain Dale Shavers. Pictured: Jennifer Love Hewitt as Kate Callahan. (Photo by Darren MichaelsCBS via Getty Images)
JIMMY KIMMEL LIVE - Emmy Award-nominated 'Jimmy Kimmel Live' airs every weeknight (11:35 p.m. - 12:41 a.m., ET), packed with hilarious comedy bits and features a diverse lineup of guests including celebrities, athletes, musicians, comedians and humorous human interest subjects. The guests for MONDAY, SEPTEMBER 29 included actress Jennifer Love Hewitt ('Criminal Minds'), actor Clark Greg ('MARVEL's Agents of S.H.I.E.L.D.') and musical guest Clean Bandit. (Randy Holmes/ABC via Getty Images)
WEST HOLLYWOOD, CA - JULY 17: Actress Jennifer Love Hewitt arrives at the CBS, The CW, Showtime & CBS Television Distribution 2014 Television Critics Association Summer Press Tour at Pacific Design Center on July 17, 2014 in West Hollywood, California. (Photo by Jon Kopaloff/FilmMagic)
NEW YORK, NY - MAY 14: Jennifer Love Hewitt attends the 2018 Fox Network Upfront at Wollman Rink, Central Park on May 14, 2018 in New York City. (Photo by Roy Rochlin/Getty Images)
NEW YORK, NY - MAY 14: Jennifer Love Hewitt attends the 2018 Fox Network Upfront at Wollman Rink, Central Park on May 14, 2018 in New York City. (Photo by Roy Rochlin/Getty Images)
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Jennifer's return to TV will come as a fun treat for her fans, who grew up watching her on "Party of Five" and dozens of other projects in the 1990s and 2000s.

“I really love the show," she told ET of "9-1-1." "I love the idea of following the first responders, but I also love really knowing who they are as people, and not just sort of seeing the emergency situations.”

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