After many years of deep friendship, Mario and Daniele decided to put a name to their musical collaboration, Fideles.
The Italian duos career kicked off in 2010 with the release of their track "Esencia" on Moan Recordings, which become a favorite summer hit in Ibiza.
In 2012 Fideles released on Sirch Records their "Maryl EP" that also included a remix by Denis Horvat. Still 2012 and they released on Shlomi Aber's “Be As One Imprint”, the Brooklyn based Inmotion Music, on Sandy Huner's Thirtyonetwenty (12”) and on Danny Serrano's Eat and Beat Lab.
He released also on labels like Marco Resmann's Upon You, Snatch! Records for a collaboration with label boss RIva Starr, Defected, Suara, Sincopat, Moan, Little Helpers and some others.