On July 21, rumors stated that Girls' Generation's Sooyoung has been captured filming for 'Infinity Challenge'. However, it's revealed she only made a brief special appearance.

According to insiders, "Sooyoung is not an official guest of 'Infinity Challenge - Summer Festival'. They coincidentally ran into Sooyoung while filming in Yeouido yesterday, so she just coincidentally made an appearance."

Meanwhile, it has been announced that 'Infinity Challenge' is preparing a summer special.