Iona was a progressive Celtic Christian rock band from the United Kingdom. It was formed in the late 1980s by lead vocalist Joanne Hogg and multi-instrumentalists David Fitzgerald and Dave Bainbridge. Troy Donockley joined later, playing the uilleann pipes, low whistles, and other instruments.

Troy Donockley is an English composer and multi-instrumentalist most known for his playing of Uilleann pipes. Having performed with many artists as a session player, he is most notable as a member of Finnish symphonic metal band Nightwish, which he has performed with since 2007 and joined as a full-time member in 2013.