Hail! is a heavy metal supergroup / tribute band, formed in 2009. The band originally included Slipknot bassist Paul Gray until his sudden death in 2010.
The band features a rotating lineup; the following people have played under the moniker:
Hail are an American indie/punk band with an avant-garde twist consisting of Susanne Lewis (vocals, guitar, main composer and lyricist) and Bob Drake (bass). The band has also had guest appearances from Mike Johnson, Dave Kerman, Chris Cutler and Bill Gilonis. Albums include Gypsy Cat & Gypsy Bird (1988), Turn of the Screw (1990) and Kirk (1992). In 2006, Lewis and Drake released a new Hail album, Hello Debris, on Recommended Records.
Lewis also collaborated with Azalia Snail for the Hail/Snail album How to Live with a Tiger (1993), and she guested alongside Cutler on Biota's album Object Holder (1995).
Iron is an album by Moravian (Czech Republic) folk metal band Silent Stream of Godless Elegy, originally released in 1996 by Leviathan Records.
"Iron" is the debut single by Woodkid (real name Yoann Lemoine) taken from his album The Golden Age that was prepared in 2011 but released in 2013. It was written by Yoann Lemoine himself and arrangements by Gustave Rudman. The single was released on March 28, 2011. This song gained immense popularity after being used in a trailer for Assassin's Creed: Revelations.
A remix EP was also released called Iron (EP) in 2011 charting in its own right.
Iron, when used metaphorically, refers to certain traits of the metal iron. Used as an adjective and sometimes as a noun, it refers to something stern, harsh, unyielding, inflexible, rigid, sturdy, strong, robust. It is sometimes used for something technological (iron lung) or not technologically advanced (iron bomb).
This list is categorized superficially, rather than by the actual meanings of the expressions, to stress the metaphorical usage.