Justin Timberlake caught the fever in 2014 and the band was invited to open for him for his 20/20 World Experience tour of New Zealand and Australia.
Being chosen by Timberlake gave the band the extra one per cent it needs to be great. Belief.
"Touring with Justin definitely gave us confidence and opened our eyes to the potential we have," says bass player Ivan Kirimaua.
"I took away some of his stage presence and his natural and professional way he has with people. He is just effortless," says lead singer Sasualei "Jr King" Maliga.
More recently, they toured with Fifth Harmony and that experience gave them a taste of what's probably just around the corner - screaming fans.
"Fifth Harmony are amazing and very talented - being on stage in a sea of their crazy, crazy fans was awesome.
It's also their collaboration with Meghan Trainor that the band really treasures. Not only do they count her as a friend, she writes songs for them and has recorded with them.
The Common Kings sound is a cocktail of reggae, R&B, rock and pop with influences as diverse as Gypsy Kings to The Who.
It's lead singer Junior, however, who gives the cocktail some kava kick. One Love fans are going to be knocked out by him. The dude has pipes.
They may claim to be common, but these kings will get a lot more subjects from the One Love crowd.
the fine print
What: Common Kings at One Love
Where: Wharepai Domain
When: Sunday, 8.40pm