Plus, a pair of Thornton Dial assemblages, a rare Chinese bowl and a work made out of flip-flops and suede

“I couldn’t believe the dynamism, the energy, the courage, the rawness of these works,” the actor and activist said

Works were purchased from Souls Grown Deep Foundation in a move that could ‘alter the canon of American art'

Highlights from Souls Grown Deep Foundation acquisition go on show among New York museum's collection