I saw Blink-182 opening for Primus in 1998. I don't really remember too much of the show at all, I just wanted to mention it and list off Blink-182 as another band who I saw open for Primus only to end up getting way bigger than them in the years after.
01/18 & 01/19 -- Godspeed You! Black Emperor and Neurosis (in Montreal)
02/08 -- Dark Tranquility
04/11 -- Black Sabbath