It's been stuck in my head for three days and, for the life of me, I can't remember the name or the band. I don't even know any of the lyrics, really. I watched them on Jimmy Fallon a couple of years ago, and as recent as spring of this year watched a video of them on YouTube.
The band's lead vocalist is a male, I think he's is of asian or polynesian descent. He is a very high tenor for a male.
The lyrics are not quite clear, for me. I can make out the last part of the main chorus as
"... can't ( or won't ) be .....cated."
The last word seems to be four syllables, something "cated". It may be "complicated" but I think it's something else.
That's all the clues I can give you. I know it's not much to go on. i have the tune stuck in my head,but I can't relay a tune into text.
EDIT :
http://vocaroo.com/i/s07eaHrMaZ57
Thanks to Terash Cas. I had no idea that existed.