A supergroup is when members of different bands join together and form a new one. Well, there's a new type of supergroup out there now, and it doesn't consist of the members of big bands — it consists of the roadies of them, particularly of Slipknot, Deftones, Guns N' Roses and more.
Knifes were formed when two roadies of Linkin Park decided to start writing their own music and jamming together. Ben Young was the guitar tech for Linkin Park's Brad Delson, and Warren Johnson joined him on the drums. Eventually, the pair worked for Fall Out Boy together, and recruited Pete Wentz's bass tech Brian Diaz for their new group, thus forming the trio.