On the June 5th episode of KBS' 'Win Win', BoA confessed that she was in a secret relationship in the past.

Surprised by the confession, the MCs asked her how she was able to keep it a secret without stirring up any rumors. She replied, "During my promotions, [there were times] I wasn't allowed to go out, and I also had my cellphone confiscated. We just exchanged text messages. Since we never met outside, there was no chance for rumors to arise."

When asked by MC Kikwang if her ex-boyfriend was a celebrity, she honestly replied, "Yes, he was. But I don't know whether he was a boyfriend or simply a friend who I exchanged texts with."

BoA continued that she had her first real relationship two years after her secret relationship.

Source + Photos: E-Today via Nate