Guidi started singing in 1999, at the age of 16. She was the lead singer in the rock band Pic-Nic, and after that she has worked with the groups Dá no Coro, Rio Pandeiro and Forró de Cordas, focusing on brazilian rhytms (samba, forró), afro-brazilian culture and regional songs.
Guidi started performing solo in 2008, in Rio de Janeiro, and recorded her first CD in 2014, called "Temperos".