[2] He released his self-titled, first solo album in 2014, which topped real-time music charts and included the No.1 hit single, "Difficult Woman.

"[3] His second album, released in 2016, was similarly successful and spawned the No.1 hit, "Fallen In Love (Only With You).

"[4] After being discharged from his mandatory military service in 2018,[5] Jang released his third album in 2019, which included the hit single "Every Moment With You.

"[6] Later in 2019, his song, "Your Shampoo Scent In The Flowers," from the soundtrack to the television series Be Melodramatic, reached No.

The children have appeared on the South Korean variety show The Return of Superman alongside their father.