Way back in the year 2000, The Smashing Pumpkins, released the second part of their (then) swan song, Machina II: The Friends and Enemies of Modern Music. This album never fully got the proper release and instead released for free on the internet on September 5, 2000. Plans for a standard physical release, bundled with the first part Machina I: The Machines of God,  was supposed to happen in 2013 but was postponed due to legal setbacks. In a recent Q&A on Instagram, Billy Corgan revealed that all legal issues had been resolved. The two albums are said to be remastered and released as one in 2020. That being said, The Smashing Pumpkins did do some promotion for the album back in 2000 with a very memorable performance on the Tonight Show with Jay Leno, which also ended up being the band’s final television appearance until their 2007 revival.

The Smashing Pumpkins- Cash Car Star (on Tonight Show with Jay Leno):