Tegan Rain Quin y Sara Keirsten Quin nacieron el 19 de septiembre de 1980 en Calgary, Alberta, Canadá. Desde muy temprana edad, las gemelas mostraron un interés ferviente por la música. Al crecer en una casa llena de discos y guitarras, no era raro verlas tocando o experimentando con melodías y letras desde que tenían ocho años.
Durante su adolescencia, Tegan y Sara comenzaron a escribir y grabar sus propias canciones. En 1998, con solo 18 años, ganaron una competencia de radio local cuyo premio era tiempo de estudio profesional para grabar un álbum. Este evento marcó el punto de partida de su carrera profesional y poco después, lanzaron su primer álbum "Under Feet Like Ours" de forma independiente en 1999.
En el año 2000, firmaron con el sello Vapor Records, fundado por Neil Young. Este acuerdo cimentó su camino a la fama. Su segundo álbum, "This Business of Art" (2000), fue bien recibido por la crítica y les permitió iniciar giras más extensas en Canadá y Estados Unidos, abriendo para bandas como Neil Young y The Pretenders.
Con el lanzamiento de "If It Was You" en 2002 y "So Jealous" en 2004, la dupla alcanzó una notoriedad aún mayor. "So Jealous" en particular hizo que captaran la atención del público internacional, gracias a canciones como "Walking with a Ghost", que fue versionada por la popular banda The White Stripes.
I can't say that i'm sorry for getting so ahead of myself
I can't say that i'm sorry for loving you and hating myself
I had nothing to show you
I had nothing to hold you down
It's killing me to walk away
How come you don't want me now?
Why don't you want to wait this out?
How come you always lead me on
Never take my call, hear me out?
Why don't you want to win me now?
Why don't you want to show me off?
Tell me why you couldn't try
Couldn't try and keep me here
I see you by my house walking with a different girl
I see you by my house talking with a different girl
She's got nothing to show you
She's got nothing to hold you down
You're killing me walk away
How come you don't want me now?
Why don't you want to wait this out?
How come you always lead me on
Never take my call, hear me out?
Why don't you want to win me now?
Why don't you want to show me off?
Tell me why you couldn't try
Couldn't try and keep me here
One day soon i won't be the one who waits on you
(one day you won't know me)
Some day soon i won't be the one who waits on you
(some day you won't know me)
How come you don't want me now?
How come you always lead me on
Never take my call, hear me out?
Why don't you want to win me now?
Tell me why you couldn't try
Couldn't try and keep me here