Jim James of My Morning Jacket performs during the Preservation Hall Jazz Band 50th anniversary at Carnegie Hall in New York City on January 7th, 2012.

Steve Earle performs during the Preservation Hall Jazz Band 50th anniversary at Carnegie Hall in New York City on January 7th, 2012.

Jim James of My Morning Jacket performs during the Preservation Hall Jazz Band 50th anniversary at Carnegie Hall in New York City on January 7th, 2012.

Mos Def performs with the Preservation Hall Jazz Band during the Preservation Hall Jazz Band 50th anniversary at Carnegie Hall in New York City on January 7th, 2012.

Allen Toussaint performs during the Preservation Hall Jazz Band 50th anniversary at Carnegie Hall in New York City on January 7th, 2012.

The Del McCoury Band performs with the Preservation Hall Jazz Band during the Preservation Hall Jazz Band 50th anniversary at Carnegie Hall in New York City on January 7th, 2012.

Jim James of My Morning Jacket performs during the Preservation Hall Jazz Band 50th anniversary at Carnegie Hall in New York City on January 7th, 2012.

The Del McCoury Band performs with The Preservation Hall Jazz Band during the Preservation Hall Jazz Band 50th anniversary at Carnegie Hall in New York City on January 7th, 2012.

The Preservation Hall Jazz Band performs during the Preservation Hall Jazz Band 50th anniversary at Carnegie Hall in New York City on January 7th, 2012.

Preservation Hall Jazz Band Dancers perform during the Preservation Hall Jazz Band 50th anniversary at Carnegie Hall in New York City on January 7th, 2012.

George Wein performs during the Preservation Hall Jazz Band 50th anniversary at Carnegie Hall in New York City on January 7th, 2012.

Mos Def performs during the Preservation Hall Jazz Band 50th anniversary at Carnegie Hall in New York City on January 7th, 2012.

Finale during the Preservation Hall Jazz Band 50th anniversary at Carnegie Hall in New York City on January 7th, 2012.