ONE'S a pub classic, belted out at top volume by tipsy patrons around closing time. The other is a more dignified affair, a favourite of youth choirs and choral groups. Now, as unlikely as it seems, the classic children's ditty Kookaburra and the Men At Work hit Down Under are set to go head-to-head in court amid accusations part of the rock anthem is a rip-off, The Daily Telegraph reports. Music publishing company Larrikin owns the Kookaburra song and claims the melody that accompanies the line "Kookaburra sits in the old gum tree" is reproduced in Down Under. The case...