Sakaue Hiroshi, who is known for being the oldest rapper, has announced his retirement. 

Sakaue made his major debut in 2009 with the album "Sen no Kaze ni Naru Mae ni." On October 21, he announced on Twitter, "I am now 99 years old. I have decided to retire." He added, "Depending on everyone's support, I hope to sing again. Thank you very much."