 Complete the following phrase:  In 1975, vocalist Antonella Ruggiero and drummer Giancarlo Golzi joined Jet, resulting in a new band: Matia Bazar. During his two-decade journey with the band, Stellita was consistently credited for his pivotal role, writing the lyrics of virtually all the groups songs and being the overall creative force behind their musical experimentations, from progressive rock to electropop to pop rock, leading the group through fifteen studio albums, seven participations to the Sanremo Music Festival, one 