Billlie’s Siyoon shares unexpected family link to legendary singer Shim Soo Bong

Siyoon of Billlie revealed her surprising family connection to Shim Soo Bong on 'Hidden Singer 8'.

During the March 31 broadcast of the 'Hidden Singer', Shim Soo Bong appeared as the featured artist, with Billlie members Siyoon and Tsuki seated in the audience. While discussing musical influences, Siyoon caught attention by sharing that she is related to singer Son Tae Jin, who confirmed she is his sixth-degree niece.

Siyoon further explained that after researching her family tree, she discovered that Shim Soo Bong is her ninth-degree relative and technically her great grandaunt, drawing a surprised reaction from the veteran singer.

The revelation added a lighthearted moment to the show, highlighting Siyoon’s unexpected musical lineage and connection to one of Korea’s most iconic artists.