'This Is Us' star Justin Hartley, Sofia Pernas are Instagram official with New Year's selfies

"This Is Us" star Justin Hartley and actress Sofia Pernas made their romance Instagram official on New Year's Eve, ringing in 2021 with selfies from their "quarantine den."

"Last minutes of 2020 here in LA. Bring on 2021! Happy New Year!" Hartley wrote on an Instagram post Thursday night with a black-and-white indoor shot of the couple.

Pernas, a Moroccan actress who stars on the CBS action-adventure drama "Blood & Treasure," followed suit on her social media. "Sayonara 2020, it’s been real. Happy New Year from our quarantine den to yours," she posted on her Instagram (complete with heart emoji) with a picture taken outside.

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Hartley, 43, and Pernas, 31, were co-stars on the CBS soap opera "The Young and the Restless." Pernas also appeared on "Jane the Virgin" and voiced a character in the recent "Star Wars: Squadron" video game. According to People, the couple has been dating since earlier this year and even had matching posts on their Instagram Stories.

Hartley filed for divorce from real-estate agent Chrishell Stause, his second wife, in November 2019, after two years of marriage. The end of their relationship was documented on the third season of Netflix's "Selling Sunset."

Stause, a major focus of the show, found out in the season's fifth episode when she received a text message from Hartley that divorce papers had been filed. "Forty-five minutes later, the world knew" via TMZ report, Stause said on the show.

In an October interview on the Sirius XM show "Radio Andy," Hartley told host Bevy Smith that while he has a public life, "I will be very private about my personal affairs." But he also confirmed that "I'm really happy with where I am. I'm happy with my career, I'm happy with my personal life, I'm healthy, I'm safe, all of those things. I'm very thankful."

Contributing: Erin Jensen

This article originally appeared on USA TODAY: Justin Hartley, Sofia Pernas celebrate New Year's on Instagram