Wire & Glass (subtitled "Six songs from a mini-opera") is the only EP released from the Who's 2006 album, Endless Wire. The EP was released exclusively to the iTunes Music Store on 17 July 2006 but a Maxi-CD/12" was released a week later in Australia and the United Kingdom. The EP was released as a "mini-opera" in six songs. No North American distribution was secured prior to the release of Endless Wire, but promo copies were pressed in France, Germany, Ireland, and Ukraine.