Mercyful Fate
In 2015 Janne released the second album with Constancia, a re-issue of the first album by Grand Design and the third release by Mountain of Power. The latter featured guest spots from Carl Dixon (Coney Hatch), Kee Marcello (Europe), Mikael Nord Andersson (Roxette, Scorpions), David Angstrom (Hermano, Luna Sol), Hank Shermann (Mercyful Fate), Michael Denner (Mercyful Fate) etc.