清春 (Kiyoharu) had a successful slol career after fronting the band 黒夢 (Kuroyume). Here's a video from each of them as they both fit here. Kuroyume were generally a bit heavier musically speaking.
黒夢 (Kuroyume) - ゲルニカ(Guernica)
清春 (Kiyoharu) - 夜、カルメンの詩集 通常盤 (Yoru, Carmen no shishuu)