Popsugar Celebrity Celebrity Tiktoks Mandy Moore Joins In on the Celine Dion TikTok Challenge Mandy Moore Adds a "This Is Us" Twist to the Celine Dion TikTok Challenge 27 January 2022 by Monica Sisavat Solís View On One Page Photo 1 of 1 ADVERTISEMENT () Start Slideshow View this post on Instagram A post shared by Mandy Moore (@mandymooremm) Share This Link Copy ← Use Arrow Keys → 1 Watch Mandy Moore Do the Celine Dion TikTok Challenge Previous Next Start Slideshow Celebrity TikToksTikTokMandy MooreCeline Dion