1. @Em_HarrisS

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.

2. @lilterrio

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.

3. @JacobWhitesides

Instagram followers: 883,000

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