The 16th anniversary of the September 11 attacks make the 2001 still feel fresh and devastating, and the celebrity world is not immune.

The country paused Monday to remember those who lost their lives, and sent celebs to Twitter to express their thoughts on the national tragedy, reflect on those who perished and honor the heroes who bravely put everything on the line to save the lives of strangers.

A solid cross-section of famous folks, from Ben Stiller and Hugh Jackman to Carrie Underwood and Eva Longoria Baston all took time to remember the day that changed America.

Take a look at what they had to say below.

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