There is more than artist with this name: 1. Invocation is a project formed by guitarist Tom Still in early 2009 with drummer Alex Todd-Weller, bassist Robin Saunders, and vocalist Matt Duffy joining early 2011. Guitarist James Hewitt joined early 2012 after departure of their former guitarist, Jim Bailey. Their sound is a blend of hard hitting rhythmic riffs accompanied by epic soundscapes and melodies. The goal is simply to create and share music they enjoy with others. Read more on Last.fm