Sir Tom Jones, 83, thrilled his fans as he was seen at Perth Airport to continue the next leg of his tour Down Under.The Welsh singer was dressed casually in a black and white flannel shirt, which was worn over a black T-shirt and paired with black trousers. He tried to keep a low-profile with black trainers and a cap. As Sir Tom left his car and made his way inside the airport, he flashed a smile at waiting cameras, proving to fans he is still fighting fit.The singer had sparked concern late last year when The Voice viewers urged him to get a mark on his face "checked out".