Girl group SISTAR's member Soyou showed off her sexy body.

On tvN "SNL Korea" aired September 20, SISTAR members appeared as hosts.

On this day, Soyou became a girlfriend with 'two faces'. She acted as a yoga instructor and appeared in a sexy yoga outfit, catching much attention.

While instructing for a yoga class, she pointed out the poses of Shin Dong Yeop. But Soyou was his girlfriend and she apologized to him with cuteness and kisses after the other students had left.