Sarah Grace Morris, the 12-year-old younger sister of social media sensation MattyB, started out by appearing in her brother’s rap videos. After going viral as the star of MattyB’s “True Colors” video, her parents set up the SarahGraceClub YouTube channel, where she entertains nearly 500K subscribers by vlogging, participating in fun quizzes and challenges, and serving as a role model for other kids with Down syndrome. Sarah Grace’s exciting 2017 included often-messy DIY projects with her famous friends Olivia and Sierra Haschak and the ‘Floor is Lava’ challenge with her big brother. Her sense of humor always shines through, whether it’s in a YouTube video or on Instagram, where 820K+ fans love seeing her hilarious and adorable antics.