In her first book, Inclassificável: Memórias da Estrada, she tells the experiences she lived traveling around forty Brazilian cities with the band Rebeldes.

The daughter of psychologist Berenice Nunes and André Fronckowiak, Melanie was born in Araranguá, in the state of Santa Catarina and raised in Pelotas, Rio Grande do Sul.

[4] In October 2011, the former model was voted Girl of the Year in Meus Prêmios Nick,[5] a teen event sponsored by Nickelodeon Brazil.

[citation needed] In 2015, Fronckowiak was invited to join the cast of El Hipnotizador, the first bilingual HBO television series in Brazil.

That same year, Fronckowiak launched a fashion blog called Sweet Ray of Style and received the support of major brands, such as Chanel.