All lives will not matter until black lives matter. ##blacklivesmatter

♬ My Tears Are Becoming A Sea - M83

Like Naomi Osaka, Frances Tiafoe, and many, many more, Coco Gauff is using her platform to raise awareness of the issues behind the unrest in America. 

On Tuesday, the 16-year-old posted a black square but she wanted to be sure that everyone was taking action, not just posting photos. 

Super star names like Novak Djokovic, Rafael Nadal and Roger Federer posted on #BlackoutTuesday, and Gauff wasn't afraid to jump in with a call to action. 

Since she's only 16, the American can't vote yet, but she wants everyone else to use their own voices to drive change.

Gauff is encouraging her followers to email, text and send letters, while raising awareness as well.