How Hollywood Is Honoring 9/11 on 17th Anniversary of Terror Attack

Nicole "Snooki" Polizzi, Erika Jayne and Debra Messing were among those participating in the national remembrance on social media, where tributes to the lives lost and the first responders dominated the Tuesday morning trends.

Today marked the 17th anniversary of the Al-Qaeda carrying out a string of attacks on American soil on a day that will forever be known simply as 9/11. Two hijacked planes struck the World Trade Center's North and South Towers in New York City, while a third plane crashed into the Pentagon in Arlington County, Virginia. A fourth was headed toward the White House in Washington, D.C., but crashed in a field in Pennsylvania's Stonycreek Township after passengers on Flight 93 heroically stood up to the terrorists.

"Today we honor the souls lost this day 17 years ago, the brave first responders -- many of whom are still suffering today -- and those lost in all the wars fought ever since," Messing wrote. "My heart is with the family and friends of those taken far too soon."

Snooki took to Instagram to write, "We all remember this day like it was yesterday. Today we remember those innocent lives lost, those who have survived, fdny/nypd & all rescues who risked their lives to save others, & those who fought to defend our country."

President Donald Trump, on the other hand, used his Twitter feed to deny collusion with Russia, quote Fox News, slam the FBI and Department of Justice, and praise "TRUE WARRIOR" (and his lawyer) Rudy Giuliani -- who was mayor of NYC at the time of the attacks. Scattered between his angry tweets were a few tribute-ish statements, including, "17 years since September 11th!" and "#NeverForget #September11th."

Trump's Hollywood haters didn't take his bitter tweets lightly on a day that they believe should be reserved for remembrance.

"Have you not a molecule of decency or dignity?" Oscar-nominated filmmaker Ava DuVernay tweeted. "Spewing your hate and trash and nonsense on today of all days. You're a complete fraud. Sit down somewhere, bow your head and try not to tweet about it. #NeverForget"

Meanwhile, former President Barack Obama wrote, "We will always remember everyone we lost on 9/11, thank the first responders who keep us safe, and honor all who defend our country and the ideals that bind us together. There's nothing our resilience and resolve can't overcome, and no act of terror can ever change who we are."

Read on for more celebrity tributes.

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