Vine followers: 336,800
This ukulele-strumming singer-songwriter, 23, is Vine's answer to Regina Spektor. Last July, the Oregon native crowd-funded $6,862 to record her debut EP, Year: 2277.
Instagram followers: 808,000
LeBron James and Meek Mill have paid tribute to the 7-year-old whose viral dance moves inspired a BET Awards cameo, a tour and a budding rap career.
Instagram followers: 883,000