They experience various genres of music: pop, dance, disco, funk, electronic; they sing in English, Italian, Spanish and French. Several vocalists belong to the band; among the most representative, we find Stella Demaris, DJoNemesis, Dorien Dorion, Mauna Ki, Ritanne du Lac and La Vecchina dell'Aceto (The Old Lady of Vinegar).
Fratelli Stellari pay attention to their look and often appear in space costumes; sometimes their lyrics are humour-oriented. They usually record at two studios, one in Florence and the other in Turin: Pleyad Studios, which is also the name of their discographic label.
The group has published two books written in Italian: "Dall'Egitto con Furore" ("From Egypt with Fury") and "50 Sfumature di Alieno" ("50 Shades of Alien"); the publisher is Youcanprint.it.