Musical.ly has attracted 70 million users of mostly teen, tweens, and kids within two years—so what makes the app that allows users to record 15-second music videos so successful?

Musical.ly has attracted 70 million users of mostly teen, tweens, and kids within two years—so what makes the app that allows users to record 15-second music videos so successful? For starters, it’s a gateway to social media. Young “musers” who aren’t old enough for Facebook and Instagram are getting the opportunity to showcase their talents, and accumulate likes and followers within a platform that encourages viewers to “say something nice” in comments. (Kidscreen)