Nine Inch Nails kicked off the second show of their farewell tour Sunday night with a milestone in the band’s 20-year history: a live performance of their 1994 album “The Downward Spiral” in its entirety and sequence which stunned the audience of 1,400 at Webster Hall.   This is the first – and could possibly be the only – time they have done this.

The rest of the set featured selections from throughout the band’s career including “Head Like a Hole,” “The Hand That Feeds,” and a cover of new wave singer Gary Numan’s “Metal.”

The band is on its “Wave Goodbye” tour, which continues with shows in New York, Chicago, and Toronto before concluding in Los Angeles next month.