Mandy Moore on the TikTok Celine Dion Challenge as Rebecca Pearson!

The 37-year-old singer and actress took part in the viral Celine Dion TikTok challenge, in which social media users lip-sync to the megastar's classic 1996 hit "It's All Coming Back to Me Now" in the most dramatic way possible.

"When you call 'grace' to make a @tiktok...," Moore captioned a video posted to Instagram on Wednesday as the older version of her This Is Us character, Rebecca Pearson, adding the hashtags "#itsallcomingbacktomenow #thisus #celinedion," while tagging Dion, 53, and her This Is Us costars, Sterling K. Brown.

Moore is dressed up in the video and sits on a couch with Brown, 45, and Huertas, 52, who are also dressed up. Moore begins mouthing the song's lyrics as the song's catchy chorus plays, then stands up and extends both arms dramatically, while Brown and Huertas each take a sleeve of her cardigan and pull it off.

Moore then grabs a microphone and takes her lip-syncing to the next level while Brown performs the light show in front of her. Also, Huertas fans her with cash.

Moore, who recently spoke with about the 20th anniversary of A Walk to Remember with costar Shane West, also revealed that "the friendships" are what she'd miss most about This Is Us.

"We're almost there. We're a very close family, and we've been that way since the beginning and our crew, too. "The Emmy-nominated actress spoke about the show's cast and crew, which is currently in its sixth and final season.

"I'd say 95% of the people who were there from the first episode are still working on the show. So we're a very close-knit family all-around, "She went on.