Complex sentence: At the age of 22, Villafañe started her own production and artistic production company, Dum-Dum, in partnership with Victor Hugo O'Farrill where she launched Flans, one of the most influential musical groups of the 80's.
Split into simpler sentences: At the age of 22, Villafañe in partnership with Victor Hugo O'Farrill started Dum-Dum, an artistic production company. Here she launched Flans, one of the most influential musical groups of the 80's.