Related Information for Trigger Theory Formed in 2005, Trigger Theory is a solid 4-piece rock band, which became set in Hamilton by 2006. This pop-punk influenced band are known for their well written, catchy rock songs, and their fun and energetic performance. They are sure to catch the attention of any rock loving audience.Their pop-structured rock songs contain powerful vocals (from singing, to shouting, to screaming) with hooky melodies, lyrics, and a band of guitars and drums that are played hard with all the energy and e.. read more