She composed her first song at the age of ten. By the time she was 14, Isabel had started singing professionally, on backing vocals in various groups in Mozambique, South Africa, and The Netherlands.
Alitunga nyimbo ya kwanza akiwa na miaka kumi. Wakati alipofikisha miaka 14, Isabel alianza kuimba kama kazi kwa kuwa muimbaji msaidizi katika makundi tofauti nchini Msumbiji, Afrika kusini na Uholanzi.