Winx Club - Episode 410

Musa and Riven go to a recording studio where Musa sings for a record manager that likes her voice, but Riven does not like the record manager, and this causes him and Musa to drift father apart. While this happens, the other Winx and Roxy try to get the people in Gardenia to believe in fairies, but not it's until a fire created by the Black Circle (who Bloom is able to defeat with an explosion) is extinguished that they manage to do so.