Given the task definition and input, reply with output. Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.

Iron Maiden were formed on Christmas Day in 1975 by bassist Steve Harris shortly after he left his previous group , Smiler . Harris attributes the band 's name to a film adaptation of The Man in the Iron Mask from the novel by Alexandre Dumas , the title of which reminded him of the iron maiden torture device . After months of rehearsal , Iron Maiden made their debut at St. Nicks Hall in Poplar on 1 May 1976 , before taking up a semi-residency at the Cart and Horses Pub in Maryland Point , Stratford .
Iron Maiden