BTS’s eldest member Jin has just turned uncle, to brother Kim Seok Jung’s first child. His wife Kim Ahreum, gave birth to a baby boy on Monday. The proud dad announced the baby’s name on his Instagram account as ‘Sun.’ However, fans have been speculating that the baby’s name is ‘Seon,’ as Jin had revealed during an interview when the group had just made their debut. Fans have been celebrating baby 'Sun's' arrival with congratulatory messages over social media.