Taylor Swift has added concerts in four cities to the 2012 leg of her Speak Now World Tour after selling out the initial shows this week in Australia and New Zealand. Her Australian dates are March 2 in Perth, March 4 in Adelaide, March 6-7 in Brisbane, March 9-10 in Sydney and March 13-14 in Melbourne. She'll also play two shows in Auckland, New Zealand. In the meantime, Swift will perform her third and fourth shows of a four-show engagement at the Staples Center in Los Angeles on Saturday and Sunday (Aug. 27-28). Her U.S. tour dates will conclude Nov. 21-22 at Madison Square Garden in New York City.