Her first big song, "808s and Motivation," was originally released on November 21, 2018.
The music video for the song "808s and Motivation" was watched more than 11 million times.
Her mother and her two sisters helped in making the MattyB music video. She has sisters named AJ, Addison and Abi; they came to be known as the Davis Sisters on their YouTube channel.
She and Gracie Haschak have both been featured on MattyB songs.