Since 2002, April has been designated Jazz Appreciation Month. This year’s celebration was kicked off with a big bang. The Smithsonian’s National Museum of American History announced the LeRoy Neiman Foundation donated $2.5 million towards the expansion of jazz programming.

The foundation also donated “Big Band,” a painting by LeRoy Neiman.

Neiman considered the painting “one of the greatest in his career.” Four of the 18 iconic jazz musicians have been inducted into the Philadelphia Walk of Fame  – John Coltrane, Dizzy Gillespie, Billie Holiday and Gerry Mulligan.

The painting is now on display at the National Museum of American History.