Son Anna had to quit during the middle of KBS "Happy Sunday – Qualification of Men" choir special because of health problems. However she will now debut under the name Anna. She is garnering more attention due to the fact that she is best friends with SNSD's Yuri. Son Anna entered the SM competition in 2000 when she was a middle school student, and proudly snatched the award for "Best Singer". She had been a SM trainee from 2000 to 2004 and had formed strong relationships with many SM artists like SNSD's Yuri and Sooyoung, Jaejoong, and more. Son Anna revealed that she is especially close to Yuri. Yuri even mentioned Anna in her "THANKS TO", and is currently cheering and supporting Anna's debut. A representative of Son Anna said, "From Anna's 10 years of training, she will be debuting as a rookie artist with the voice, the dancing and the visual. We are confident that her powerful voice, skill and charisma will capture the stage and more." Son Anna first spread her name by featuring for Crown J's "Kevin is a Player". Meanwhile, Anna will release two songs, "Just 5 Minutes" and "I Live Because I Can't Die" on the 10th.