Lady Gaga reportedly suffered a concussion during her last New Zealand show after being struck in the head with a pole by one of her dancers.

The superstar singer was performing her song Judas at Vector Arena on Sunday when one of her dancers accidentally hit her on the top of the head with a large metal pole he was moving.

The incident was caught on camera and shows Gaga stagger when struck, before leaving the stage.

According to the website TMZ.com she told the audience: "I want to apologise. I did hit my head and I think I may have a concussion. But don't you worry, I will finish this show."

Gaga's make up artist Tara Savelo confirmed on Twitter the singer had suffered the concussion. 

"Gaga has a concussion but she is going to be OK. She wants u to know she loves u. I'm taking care of her. Cant believe she finished the show."

She went on to perform another 16 songs on Sunday, the last of her three Auckland concerts.  

- © Fairfax NZ News