KARA's Goo Hara has failed the written test portion of her tractor license test. On the September 17th episode of KBS's Invincible Youth, Hara became the first Korean celebrity to try for a farm machinery operating license. Before the written test, Hara showed her resolution by test-driving a tractor and demonstrated that she could forward and reverse effortlessly. Goo had a busy schedule visiting Thailand for the filming of a CF, but she always carried her study guide around with her and studied whenever she could. She even prepared a practice test with Kim Shin Young to review her knowledge. Although Goo Hara concentrated and tried hard, she answered only 29 out of the 60 questions correctly, when at least a 36/60 is required to pass. Hara entered the testing room with determination, but seemed to be lost during the test. She showed no confidence afterwards either, and the result turned out to be a disappointment indeed. Goo Hara, feeling that she failed to keep a promise she made to the people, responded, "I did my best but could not keep my promise. But I will become a hardworking Goo Hara. I am sorry." (S: Newsen)