Australia’s most prominent export wobbleboard player, responsible for introducing the ancient instrument to thousands of drunken British uni students is returning to Glastonbury following a triumphant performance last year. After causing a massive crush as thousands of people tried to get into a smaller arena to see him perform, he’s been given the honour of opening the 2010 festival’s Pyramid Stage on Friday 26th June. All together now: Tie me kangaroo down sport, tie me kangaroo down…