Frightened Rabbit Scott Hutchison.
Mr Hutchison's body was found on the banks of the Firth of Forth after he killed himself in May.
His family said he was "devastated" by his death.
Frightened Rabbit's performance at Glasgow's Kelvingrove Bandstand wants to be part of a charity event to raise money for socialite Social Bite.
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The band, formed by Mr. Hutchison and brother Grant on drums, released their debut album Sing the Grays in 2006, and went on to release four more albums.
They were signed up for the concert, which is part of Social Bite's sleep in the park event, before Mr Hutchison's death, and thought it would be the right opportunity for their first show without him.
The remaining band members will be joined by special guests in a tribute to Scott.
The concert, in Kelvingrove Park, wants to raise funds for a charity Mr Hutchison's family are setting up in his memory.
Grant said: "It seems like the right thing to do, and like a natural thing to do – to make a positive thing out of something that personally makes a tragic event to play with people that are good friends again. "
Asked how he would feel playing without his brother, he said: "To be honest, I do not know.
"It's going to be highly emotional, but I think it's a positive way to do it that for the first time.
"I think I'll be more nervous than I've ever been for a Frightened Rabbit.
Considering the future, Grant said he was still grieving but the band had plans to continue.
He said, "It's been seven months, that's a very short time.
"We have something planned for next year which we hope to announce at the start of the year.