Within a week, she ended up in line for eviction, but managed to survive against Mai Meneses, who is now a member of the group Nena Daconte.

Her Renditions of Celine Dion's Si Tu Eres Mi Hombre and Monica Naranjo's Sobrevivire made her one of the favorites to win.

The first single was "Acéptame Así", the second was "El Amor Me Está Llamando" (a version of LeAnn Rimes's "Love Must Be Telling Me Something"), and the third was "Decídete".

However, in December 2005, Ainhoa sang "Can't Help Falling In Love" live with Soraya Arnelas on an Operación Triunfo Christmas special (this duet was originally recorded by Ainhoa and Marey on the 2003 Operación Triunfo Season 2 compilation "Fuerza de la Vida").

In 2006, Ainhoa parted ways with Vale Music due to creative differences and signed a new deal with another management.

Ainhoa said that she wanted to create an album which defined who she really was as an artist, and that staying with Vale Music would not allow her to make that creative difference.

Her new album, Imperfecta, is made up of original compositions, with all of its 11 tracks written and composed by Ainhoa herself, 10 songs in Spanish and one in English.