Who has had a solo singing career, Ryan McCombs or Toshimitsu Deyama?
Ryan McCombs: Ryan McCombs (born July 16, 1974) is an American vocalist. Ryan McCombs:  McCombs has also served as the vocalist for alternative metal band Drowning Pool from 2005 until his departure in 2011. Ryan McCombs:  He has since reunited with Soil. Toshi (musician): Toshimitsu Deyama (出山利三 , Deyama Toshimitsu , born October 10, 1965 in Tateyama, Chiba) , known exclusively by his stage name Toshi, is a Japanese singer and songwriter. Toshi (musician):  Toshi then went on to have an extensive solo career.
i don't know