Fans mourn for the loss of F-IV member Jang Hae-young, who passed away at the age of 45. According to a report by Soompi, the news was confirmed by his co-member Kim Hyun-soo. "Jang Hae-young passed away on October 6 after battling cancer ," Kim Hyun-soo said in a phone call with Yonhap News. Hyun-soo later expressed his grief through a heartfelt tribute on social media. "I was able to be a singer because of you. I could have been a composer. Say thank you because I don't think I've ever done it right. Thank you, Jang Hae-young," he wrote. View this post on Instagram A post shared by Hyunsoo Kim (@hyunsumuzisean) Jang Hae-young debuted in 2002 as a member of the boy band F-IV, alongside Seo Ji-won, Woo Jeong-tae, and Kim Hyun-soo. The group gained attention for their soulful and heart-fluttering songs, including "GIRL," "RING," "I'M SORRY," and "SHADOW DANCE." Their success led them to win Best New Artist at the 2003 KMTV Korean Music Awards. In 2016, F-IV reunited for a memorable appearance on JTBC's Sugar Man . Following his idol career, Jang Hae-young later pursued a solo path to share his passion for music with fans. Honor and remember these South Korean stars who passed away in this gallery: