Tegan: I think everyone’s really optimistic in California and even outside of California.

As a Canadian a lot of my friends are like, “Oh, its gonna be overturned and people will be able to get married really soon.” But I think there is a hesitation to be overly confident, because we were confident the first time around.

Working with Walla went well, and Tegan and Sara also utilized his production skills on their next album, 2009's Sainthood.

Tegan and sara dating history video

Recorded with the Lonely Planet, "Everything Is Awesome" was certified gold and nominated for an Academy Award.

Their next album, 2016's Love You to Death, was again produced by Kurstin and found the sisters delving even deeper into radio pop.

Two years later, Tegan and Sara released If It Was You, followed in 2004 by their commercial breakthrough, So Jealous.

In 2005, the White Stripes released a popular cover of If It Was You's "Walking with a Ghost." That same year saw the duo touring the U. with the Killers and landing seven songs in the popular TV medical drama Grey's Anatomy.

Tegan, you told me last time that you and your partner, even though you could marry in Canada, chose not to until your American friends had the same right.

Tegan: Yeah, as a gay person, but also as someone who lives in America part-time, I'm really sensitive to this topic.So ladies, it's been about 9 months since we spoke about this stuff, and in that time these two big, potentially landmark cases have come in front of the Supreme Court.What are your thoughts on the Prop 8 case, which Tegan, could potentially really impact you and your partner? When all of this came up, I was really nervous – thinking more grand on a national level and a global level how all of this attention to one case, and to California and to gay marriage – how that would feel as a queer person and also as a Canadian.--are still every bit the outspoken activists they've been for most of their 13-year career.That outspokenness includes the currently front-burner issue of marriage equality.Tegan and Sara began playing piano at age eight, and in their teens they were playing in their own punk bands.