And yet their biggest fear at the moment is that they will have to perform live before their classmates at school assembly today.
Guitarist Calum Stewart (16), singer Sam Shannon (17), guitarist Blake Lewis (16), bass guitarist and singer Grace Cook (15) and drummer Win Piyaoui (16) - otherwise known as Winnderful - won the Play It Strange Trust's Who Loves Who music competition with their cover of the song Long White Cross, by New Zealand rock band Pluto.
Sam said the band was formed at their music teacher's request, to compete in the competition, which involved recording a popular cover song and sending it to Auckland to be judged by Recording Industry of New Zealand managing director Chris Caddick.
Now, Winnderful has won a day in a recording studio to have some of its songs professionally recorded.
The band's recording of Long White Cross will also be put on the 2013 Who Loves Who Competition CD along with songs by 22 other finalists, including fellow Bayfield pupils Charlotte Morgan and Hannah Harrison, who sang Jamie McDell's Life In Sunshine.
Despite their success and growing confidence, the band is anxious about performing live in front of their friends at school today.
''It's a big jump up for us,'' Sam said.
''We just recorded this in a room. Now, we have to perform it live.
''What if we make a mistake?''
The band members say no matter what happens on stage at the Bayfield assembly, they plan to continue performing together and building a following.