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:

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

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.”