Three Days Grace has announced a show at the Wilma Theatre in August. After the recent departure of lead singer, Adam Gontier, Three Days Grace replaced him with My Darkest Day's Mat Walst. After a short time with Three Days Grace, Matt is now back writing a new album with My Darkest Days.

According to Loudwire

In Matt Walst's absence from My Darkest Days, the remaining members of the band continued to work on new music until Walst was available again and the singer has revealed in a new posting that he has returned to the group to start lending a hand.

“Writing with the guys for the new MDD CD!! MDD, the 3rd, coming soon!!,” said Walst in his Facebook posting. In addition, My Darkest Days members have posted several updates since January to show that progress is being made toward a new album. In addition to Walst’s absence, the band has been making adjustments since guitarist Sal Costa left the group last fall.

Though Walst is back writing with the band, Three Days Grace still have shows lined up into late August. However, the shows are more scattered during the summer, giving Walst the time needed to re-group with My Darkest Days in the studio.

Tickets for the Three Days Grace show in Missoula, go on sale Friday June 7. Get more details here.