Hong Isaac, the winner of 'Sing Again 3', is beginning to interact with fans.

On the 22nd, the official Dear U bubble channel posted a “COMING SOON” message, announcing the new addition of an artist.

Dear U bubble stated, “Meet Isaac Hong on bubble now” and “Starting on bubble with STARS,” informing fans of Hong Isaac’s joining the platform.

Bubble is a fandom social network service platform where artists and fans can exchange private messages. It is currently being used for communication between various artists and their fans.

Hong Isaac, who debuted in 2014 and has been active as a singer-songwriter, appeared as contestant number 58 on JTBC’s entertainment show ‘Sing Again 3 - Unknown Singers' (Sing Again 3), which started airing in October last year.

On the 18th, Hong Isaac performed 'The Song of the Wind' in the final round of 'Sing Again 3' and ultimately won the competition.