Celebrities are taking to social media to pay tribute to the lives lost on September 11, 2001.

It has been 19 years since the Islamic terrorist group Al-Qaeda launched an attack on America, killing 3,000 innocent people and injuring over 6,000 by hijacking four planes and crashing them into the World Trade Center towers in New York City, the Pentagon in Arlington County, Virginia, and a field near Shanksville, Pennsylvania.

With America forever changed, these celebrities have taken a moment to remember the heartbreaking and catastrophic day.

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