Margrét Eir was born on 1 August 1972. She started to sing in a school choir when she was 6 or 7 years old. Later she studied singing at the Reykjavik Music Academy. In 1989 she went the USA as an exchange student and took part in a musical production for the first time. She played Mary Magdalene in Jesus Christ Superstar.
In 1991 she won a College Singing Contest. It was the start of her career. She was asked to sing a song written by Axel Einarsson in the Icelandic preliminary contest to the Eurovision Song Contest in 1992 and a song by Þórir Baldursson in the same contest in 1993. In both instances she did not win the national finals.
She was the singer in band Svartur Pipar (Black Pepper) for three years and they played in almost every club and pub in Iceland.
In 1994 she took part in the musical production of ‘Hair’ and sang the song ‘Aquarius’ and other solo numbers.
Margrét then moved to Boston to study drama at Emerson College and graduated with a B.F.A. degree in acting and musical theatre. After graduation, she worked for a while in New York City, but was then asked to come back to Iceland to play the lesbian lawyer Joanna in a production of the musical ‘Rent’. She also acted in ‘S.O.S. Kabarettinn’ and children’s play ‘Glanni glæpur’. In 1999 she began teaching drama, song and dance in Tónlistarskóli Árbæjar music school.
In 2000 Margrét released her first solo album ‘Meir’ (‘More’). The songs were all cover versions in English. In 2003, she released the album ‘Andartak’, featuring a cover of Wuthering Heights in Icelandic, called ‘Heiðin Há‘. Margrét often sings at weddings now and appears now and again as a guest with Lúðrasveit reykjavíkur (brass band), Gospel Choir of Árbæjarkirkja (chuch choir) and others.