Pop star Pink is set to come face to face with her nemesis Paris Hilton at an Austrian music festival this weekend (29-30APR06). Pink demonstrated her disdain for Hilton, Jessica Simpson, Lindsay Lohan and Mary-Kate Olsen in the video for her hit song STUPID GIRLS, which sees the singer parodying the socialite's infamous sex tape. Pink is set to the headline the Ischgl festival this weekend, while Hilton is hosting the event. Pink's spokesman says, "It could all kick off. The pair of them will have to share the stage at some point."