Linkin Park, Slipknot and Fall Out Boy have come together to form a new band called Knifes.The idea for Knifes was born onstage in Brazil during a Linkin Park concert, when Ben Young stepped in last minute for the band’s guitarist Brad Delson, strapping on an axe in front of 50,000 fans.After filling in for a few more shows, Young started penning his own songs and later roped in drummer Warren Johnson – another Linkin Park roadie.