Hapa, joined by chanter Charles Ka‘upu, on stage at Lincoln Center's Merkin Concert Hall. MarkBrett.com/positive

Flanagan is in the process of finishing "Koa, The Polynesian Journey," a children's story slated to be released this year, he said. He will adapt the work as a musical, which is scheduled to launch on Broadway in seven years.

"Last night's concert was the start of this project," said Flanagan, "as we performed songs that will be included in the play."

The New York concert was "one of those rarefied events," said Flanagan: Besides selling out and having Enos' portrait of the demigod Maui behind him, it was his mother's 80th birthday and Broadway star Tommy Tune was in the audience. "It was a glorious night, first because of my mother celebrating her birthday with us, and also, having 50 friends and family in attendance there. I met two cousins for the first time!" said Flanagan.

"New York City has a great vibe and is one of those places where audiences can inspire you and your music flows effortlessly ... it was one of those great nights!" said Aweau.