The $11 billion transportation project opens in December after a lengthy 16-year construction period. Kusama’s past public installations have drawn the admiration of millions from outside the art and design worlds, while the German-born and New York-based Smith is considered a leading figure of the Downtown scene that was popular in the city throughout the 1980s and 90s. Both will be tasked with creating floor-to-ceiling mosaics covering 2,400 square feet total, according to the New York Times.

“Whether it’s the constellation ceiling or the Tiffany clock or the statue of Mercury — the art and design make the terminal a true landmark and a destination,” MTA CEO Janno Lieber said last week in a statement. “The new LIRR Grand Central Madison facility below the existing terminal carries this tradition forward with art that elevates the travel experience and creates a sense of place. These 2,400 sq. ft of floor-to-ceiling mosaics are permanent gifts to the people of New York.”