It's been 12 years since two planes hit the World Trade Center towers in New York City and a third crashed into the Pentagon in Washington D.C. Today, on 9/11, country stars like Josh Turner, Trisha Yearwood and Rodney Atkins are united in taking a moment to remember the victims of those terrorist attacks, as well as those who died when a hijacked plane crashed in a field in Pennsylvania. 

Even stars like Hunter Hayes -- who was just 10 years old on Sept. 11, 2001 -- recall what they were doing that tragic day. The emotions come running back every time images of the Twin Towers are shown on television or pasted on the internet. They may be able to rebuild the structures, but they'll never replace the lives of the nearly three thousand people killed that day.