The website of GreenFest in Brazil (greenfest.com.br) list Jamiroquai as one of the artists performing at the event being held in Curitiba in November.  Jamiroquai will be performing on 10 November.

Stay tuned for a confirmation by Jamiroquai at jamiroquai.com/facebook no doubt over the coming days...

UPDATE (8 October): According to this website the event has been cancelled.  Thanks to Pablo for posting the comment with the URL.