"Essentially, we are getting the band back together after 11 years," Wiggins said.
"This show is sort of like 'Let's get our best friends who are also super-funny to come and hang out in Whanganui'."
Whanganui's Kajun Campbell Brooking will perform sets in both the early and late shows, with fellow River City funnyman Mike Marsh featuring in the late show.
Wiggins said there would be an upgrade on the bar front this time around.
"We have partnered with LADs Brewery Company, so they will be the official beer sponsor of our shows going forward.
"The only negative feedback from our first show was 'You've got to get better beer'.
"We have listened to the punters and we're committed to improving."
McMenamin-Pervan said June's show was already half-sold and due to demand, the next edition would be held at the War Memorial Hall's concert chamber instead of the Whanganui Musicians Club.
The pair has even bigger plans.
"Next June we will be putting on a gala show at the (Royal Whanganui) Opera House.