Still image from the 2002 Anheuser-Busch commercial that aired during the Super Bowl.
On Feb. 3, 2002, Anheuser-Busch aired a 30-second commercial during Super Bowl XXXVI paying tribute to the 9/11 terrorist attacks.
The commercial aired only once, and shows the famous Clydesdales paying tribute to those who were killed.
Every year the commercial makes the rounds, gathering millions of hits on YouTube.
The commercial can be watched below.