You may have heard that James sung Smashing Pumpkins song Mayonaise. A song he was credited to write the intro part for. Since James departure from the Pumpkins he has made very little mention of the band.
Billy said James gave him a tape cassette player and he wrote the rest of the song. you can listen to that at 14:50 in this soundcloud audio
For the best audio check out this video. Below is a better video of the performance.