Muser best known as one half of the identical twin sister musical.ly duo Greta and Alice. Their shared account, grealisisters, has grown to more than 160,000 fans through the popularity of their collaborative lip sync videos.
She and her sister began posting to musical.y in late 2016.
She and her sister have a YouTube channel, also called grealisisters, that is dedicated to challenges, interviews, musical.ly tutorials and more.
Her grandmother has appeared on her YouTube channel.
She has posed for Instagram photos with other famous musers like Nicholas Aprea.