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Three Days Grace, vocalist Matt Walst, performing live on stage at Sweden Rock Festival 2019-06-06. (c) Helena Larsson / TT / kod 2727 Stock Photo - Alamy
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Three Days Grace ARMY on X: "Brad and Matt Walst #brothers #ThreeDaysGrace #3DG4LIFE http://t.co/ltToxFhnzN" / X
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