The Aussie rocker is suffering from dehydration and severe low blood pressure and is being held in hospital for a second day awaiting test results.

Josh Klemme from Tenth Street Entertainment, the band's management company in New York says, "JET is just completing their second trip around the world in support of the upcoming release of Shaka Rock. Hopping from airplane to airplane, city to city and country to country could compromise anyone's health. Nic's drive to give it his all and get up on stage to perform despite feeling ill is a testament to how strongly he and the band feel about "She's A Genius" as a single and Shaka Rock as an album."