Welcome to the World featured a guest guitarist from a band of which the primary songwriter is who?
Welcome to the World: Welcome to the World is the second and final Psycho Motel album, released in 1997. Welcome to the World:  It also features Scott Gorham of Thin Lizzy and Dave Murray of Iron Maiden as guest guitarists. Dave Murray (musician): David Michael "Dave" Murray (born 23 December 1956) is an English guitarist and songwriter best known as one of the earliest members of the British heavy metal band Iron Maiden. Dave Murray (musician):  Along with the group's bassist and primary songwriter Steve Harris, Murray has appeared on all of the band's releases.
Steve Harris