21 years (March 5, 1999)
Singer Madison Beer and the Australian twin sisters, Miriam and Olivia Nervo, whose DJ name is NERVO.
Actor Director Singer Songwriter
Beer began posting videos on YouTube of her singing covers of popular songs in early 2012. They gained the attention of Justin Bieber, who tweeted a link to her cover of Etta James’s “At Last” to his followers.