Celebrities pay heartbreaking tributes on 9/11: from Kate Hudson to Catherine Zeta-Jones
Celebrities have paid tribute to the nearly 3,000 lives lost on September 11 2001 as the world mourns the 20th anniversary. The attacks were a series of four coordinated terrorist attacks and it remains the deadliest terrorist attack in human history, with 2,977 innocent people dying including 340 firefighters and 72 police officers, and over