Jane, 20, is of Tongan, Samoan, Fijian and Danish descent and is a member of the famous X-Factor girl group Fifth Harmony,
TVNZ reports the singing star made the announcement yesterday through her Twitter and Instagram.
"I'm so excited to announce that I'll be in attendance at the Rugby Semi-Finals in New Zealand this weekend. I'm deeply honoured that I️ was asked to sing the Tongan National Anthem for this historic event," Jane posted on social media.
Jane has copped some negative criticism online from fans, saying she is taking the limelight away from the game.