The highly anticipated Rottofest returns again in 2015 with a killer comedy and music lineup including Art vs Science, Jackie Onasis, Matt Okine and Dave Callan. Rottofest, the seventh annual comedy and music festival on Rottnest Island presented by Vulture Culture and Network Ten, is proud to announce its 2015 line-up, with 18 comedy performers and 11 music acts set to perform across four venues from 11am to 11pm on Saturday 19 September 2015. Set to the beautiful backdrop of Thomson Bay, Rottofest guarantees a great weekend away enjoying comedy and music.