Trauma is an American heavy metal band formed in 1981. It is best known for featuring Cliff Burton in its initial lineup, who left in 1982 to become the bassist for Metallica.
The group disbanded in 1985 before re-establishing itself after twenty-eight years (2013) around original vocalist Donny Hillier and returning drummer Kris Gustofson.
On September 28, 2020, Hillier died following an undisclosed illness; he was replaced by vocalist Brian Allen nearly a year later on August 24, 2021.
On December 6, 2022, Marty Friedman and Trauma were announced as special guests for Queensrÿche's 2023 Digital Noise Alliance Tour; on February 21, 2023, Casey Trask was named as substitute rhythm guitarist for Joe Fraulob on that tour.
The band's current lineup consists of Kris Gustofson, Steve Robello, Brian Allen, and Michael Spencer, with Casey Trask as their touring rhythm guitarist.
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