Jupi7er Is A Finnish Rock Band From Tampere. Band's Frontman Callisto Also Known As Teemu Rajamäki Used To Be The Bassist Of A Popular Finnish Band Called Uniklubi. Their Debut Album Pakettimatka Dimensioon Was Released 30th Of May 2012. Callisto - Vocals Guitar Europa - Guitar Ganymede - Bass Io - Drums Amalthea - Synths