In 1980 Morena, who was already a pianist and wrote poems as a hobby, decided to start writing music. To this day she is one of the most successful songwriters in Argentina and the one who has made most money in copyrights and albums sales in SADAIC's history (Argentina's songwriters association) alongside her former songwriting partner Carlos Nilson (the two parted ways in 2007). In 1984, she was one of the stars of iconic comedy show "Mesa de Noticias". From 1990 to 1991, she also had a starring role in "Amigos son los Amigos". Morena retired as an actress after starring in the telenovela "Quereme" in 1994. In 1995, she also retired as a host and as a TV personality and became a full-time producer and songwriter. In a talk for TEA Imagen students, she revealed she believed her successful past in acting was due to her charisma, not her acting skills since, in her opinion, she was never a particularly good actress.