All songs performed at the competition will be in te reo Maori. Mr Hopa said this year the group would be different than previous years.
"It will be different to our signature look with 'hoopius' as we call them - hoola hoop piu pius. We'll also have some new members as a few of the usual are in Hawaii. Our haka is something to look out for," he said.
Whangarei Mai Tawhiti is an offshoot of the Hatea Kapa Haka group, who were one of the Northland roopu (groups) who headed to the Te Matatini National Kapa Haka Competition in Christchurch this year.
Mr Hopa said the Super 12 competition was "quite different" to performing at Te Matatini where each group had 25 minutes to perform.
"The super 12s are a bit easier, it's a bit like the Sevens rugby, it's whanau and a bit of fun," he said.
If the group wins again, they will be awarded $12,000 and 2Degrees merchandise.