NEW YORK (AP) — Those who had plans to catch Iggy Azalea in concert — will have to make other plans. The rapper has canceled her U.S. tour for a second time. She informed fans in a tweet Friday, adding that she is “so sad and sorry” to let her fans down. She didn’t give a reason for the latest cancellation. Back in March, Azalea announced her Great Escape Tour would not kick off in April because of production problems. She said at the time the tour would go off in the fall. No immediate comment from Azalea’s record label or tour promoter. Meanwhile, Azalea says she will go forward with her plans to play festivals this summer.