On 9/11, celebrities, like people across the country and around the globe, took to Twitter to remember the tragic terrorist attacks that hit the U.S. on Sept. 11, 2001 with the hashtag #NeverForget.

9/11 Tributes With #NeverForget

Barack Obama, Ellen DeGeneres, Mark Wahlberg and Alicia Keys were among the big names that shared heartfelt messages on the 14th anniversary of the attacks on American soil.

The attacks, in which four passenger planes were hijacked – two of which were crashed into the North and South towers of the World Trade Center in New York City – claimed the lives of 2,996 people. Among the dead were 343 firefighters and 72 law enforcement officers.

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