On Feruary 3rd, actress Kim Sun Ah revealed her surprising friendship with pop queen BoA.

Writing through her me2day account, Kim Sun Ah said, "No. 1 Boa is awesome~~ We'vealways dreamed about being different, hehe." She added, "I should have stood further back when taking the picture! BoA is awesome! She always carefully monitors my dramas and always cheers me on. She is always~~ the No.1 girl! She is so cool these day!"

The actress from 'My Name is Kim Sam Soon' and 'Scent of a Woman' made several little jokes in her post by referring to BoA as "No.1", which is also the name of the song that allowed BoA's popularity in Korea to explode.

The two stars look like sisters as they pose for the camera with their makeup-free faces.

Netizens commented, "It's nice to see the closeness between the two of you" and�"Kim Sun Ah's famous connections. She seems to know everyone!"

Source: Kim Sun Ah's me2day