The trio, who finished fourth on this year's Britain's Got Talent, admitted the difference to their live gigs since coming off the show has been "incredible".
Te Qhairo said: "It's been a very mixed crowd in terms of crowd size and age, but all the feedback has been amazing. It's great to have people singing your songs back to you.
"The difference before to now is incredible."
Eddie Brett added: "We've done a few under-18 gigs and the audience was just going mad. We'd never experienced that sold-out show feeling before.
"Gigs at universities are the most intimidating because they've all had a bit to drink, lost their inhibitions and they're your age. We're not scared of it, but the reaction is always going to be 50/50 there."
Discussing their recent support slot for Tom Jones, Brett revealed: "We were in front of a much older audience than we're used to. They threw knickers on stage, danced about and thankfully were up for a proper jolly!"
The group are currently on their 'Rogues on the Road' tour, where they are asking fans to tweet them ideas for places to visit in each town.
Watch the latest video diary from their Brighton gig below: