Originally found on Wikipedia - http://en.wikipedia.org/wiki/311_(band)
Starting in 2000 the band began celebrating "their holiday" of 311 Day, held on March 11 (3/11). Every other year the band and thousands of their most loyal fans gather to New Orleans and celebrate with an extended concert put on by 311. The sets get longer every year, in 2000 they played 47 songs and in 2002 59 songs were played. In 2004 311 played 68 songs in 5 hours, and later that year a DVD was released of 311 Day 2004, containing 64 of the 68 songs. 311 Day in 2006 was held at the Mid-South Coliseum in Memphis, Tennessee. The band played 65 songs, the setlist was cut short from 69, because of a strict curfew of midnight. The band recorded the entire show in high definition. A 2 hour edit of the show aired on HDTV on December 10. 311 day was announced for 2008 to be held in the New Orleans Arena in New Orleans, Louisiana.