After studying at the Boys Town Vocational Institute,[3] he attended the Nanyang Academy of Fine Arts and graduated with a diploma in Western painting in 1978.

[4] M. Nasir had been deeply exposed to music not only through listening to the radio but also through his elder brother who had brought him purchased records of bands such as Bob Dylan, Queen, Al Stewart and Led Zeppelin while they were growing up in Singapore in the 1960s and 1970s.

[5] He was roped into music making in 1978 when a friend of his Wan Ibrahim, then executive producer of PolyGram Singapore, invited him to write song lyrics for the band Alleycats, who were rising in popularity at that time.

He went on record five more solo albums – namely Saudagar Mimpi (1992), Canggung Mendonan (1993), Srikandi Cintaku (1999), Phoenix Bangkit (2000) and Sang Pencinta (2006), all of which became commercial successes.

Their relationship – from which they have five children namely Ilham, Yasin, Hidayat, Syafi'i and Nurnilam Sari – lasted until Junainah's death on 8 August 1998[8] due to asthma.

Nasir's second marriage not long after in 2000 was with actress Marlia Musa (born 1969), a native of Johor Bahru, and they both have a daughter named Suci Musalmah.