Maria Arredondo started her singing career early. By the age of 10, she had already participated in some local concerts in her home town Vennesla. After that, Arredondo spent some time developing her own style.

In March 2003, Arredondo released her first album Maria Arredondo by Universal Music Norway. The album was a success in Norway, attaining the highest possible scores from an important Norwegian newspaper, VG.

In November 2004, Arredondo released her second album, Not Going Under. This was the first album to have videos from the singles, as Arredondo did not produce any videos for her first album.After Arredondo released her album, Min Jul (My christmas) (some tracks produced and arranged by Jon Lord of Deep Purple), she made some shows and then took a break.

Arredondo was among other contributions of singers like Marit Larsen in the song "For a Friend" and Marion Raven in the song "That Day", Both members of the defunct band M2M.Arredondo's three albums have combined sales of over 150,000.

On 12 November 2007, she released her first album in two years, For A Moment. The first single from this album, "Brief and Beautiful" became a monster-hit throughout the fall. "Brief and Beautiful" was written by Hanne Sørvaag and Harry Sommerdahl, and a Spanish-language adaptation of this song called "Fue para los dos" was released earlier in 2007 by Spanish singer Edurne.

Her fourth album was met with mixed reviews. On the album, "Even when you're with me" is a cover of the Spanish singer Chenoa's "Me Enamoro Del Dolor", and "If You Could Only See Me" was originally recorded by another Norwegian artist called Ina.

In the fall of 2007, it was also announced that Arredondo will star as Maria Von Trapp in the Sound of Music, which went to be a major production in Norway - premiering in the fall of 2008. This was the first major production of the Sound of Music in Norway in about 20 years (Sissel Kyrkjebø played the part as Maria Von Trapp back then).

Arredondo entered the qualifying rounds of the Melodi Grand Prix 2010 (the Norwegian selection process for the Eurovision Song Contest) on 16 January 2010 and was voted through to the national final, with the song "The Touch", which is written by Rolf Løvland.

Today,/2013) Maria works (beside her singing career) 20% in Heggedal church, Asker.Maria Arredondo was recording a solo album in the studio, and the album "Heime Nå" was released June 2013.Albums:Maria Arredondo (2003)Not Going Under (2004)Min Jul (2005)For a Moment (2007)Sound of Musicals (2008)Heime nå (2013)Singles:«Can let Go» (2003)«Just a Little Heartache» (2003)«In Love With an Angel» (2003)«Hardly Hurts at All» (2003)«A Thousand Nights» (2003)«Mad Summer» (2004)«Burning» (2004)«Cross Every River» (2005)«On Christmas Day» (2006)«Brief and Beautiful» (2007)«Kyrie Eleison» (2007)«The Touch» (2010)«Det jeg har gitt fra meg» (2013)«Heime nå» (2013)