She was born in Bagnara Calabria (RC) on September 20, 1947
Sister of singer Loredana Bertè, with hes real name - Bertè Sunday - she recorded her first song, I just eith fifteen years. She sang in village festivals, participated in competitions for new voices: the turning point came with the meeting with Carlo Alberto Rossi and the contract with jukebox, her first record label.
In 1971 she participated in the first festival of avant-garde and new trends of Viareggio, where, accompanied by her band won singing piece of unconventional value. After the release of her debut album, abandons her real name becoming Mia Martini.
In April of 1972 she maked Piccolo uomo, the result of her collaboration with Bruno Lauzi. The record remains for five months at the top of national rankings and won that year's edition of the Festivalbar, won again in 1973 with the single Minuet, written for her by Franco Califano.
In 1982 for the first time in San Remo with a song by Fossati, she wins the first award. She will take part other three times. In 1986 with a song written by Bruno Lauzi Almeno tu nell'universo, in 1990 with La nevicata del'56 and 1992 - when she finishes second behind Luca Barbarossa - Men Gli uomino non cambiano.
Mia Martini died in Milan in May 1995.