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Selena Gomez leads Seventeen magazines first-ever list of the Most Powerful Girls Under 21.

Calling Gomez The Mogul, Seventeen cites the stars acting and singing careers, along with her major clothing lines, tech start-up investing, social media presence, and activism as a UNICEF goodwill ambassador.

Demi Lovato (The Cool Chick) and Miley Cyrus (The Rebel) round out the Top 3.

The list was developed from a national survey of teenage girls about and the issue also features a Power Advisory Board with women from the worlds of entertainment, politics, fashion, business and philanthropy.

Check out the Top 12 from the Seventeenrankings below, and visit the outlet for quotes and more.

From selenagomez.com