Hasse's involvement in The Flower Kings started in 1994 when he was invited by Roine Stolt to sing a couple of tracks on the album The Flower King that was actually released as a Roine Stolt solo project.
The original line-up for the album consisted of Stolt (vocals, electric guitar, bass guitar, keyboards), Jaime Salazar (drums), and Hasse Fröberg (vocals).
Johann Adolph Hasse | Hasse Fröberg | Hasse Ekman | Richard Hasse Davis | ''K''5 is the Hasse diagram | Henry Hasse | Helmut Hasse | Hasse (disambiguation) | Hasse Aro | Hasse | Faustina Hasse Hodges |