Which Canadian indie rock supergroup released the 2000 album 'Mass Romantic'?

The Canadian indie rock supergroup that released the 2000 album 'Mass Romantic' was The New Pornographers. It was the group's debut studio album, released in Canada on November 21, 2000, through Mint Records.

The album was assembled over nearly three years, with its first four songs completed in early 1998. Its core contributors included A.C. Newman, Dan Bejar, John Collins, Kurt Dahle, Blaine Thurier, and Neko Case, bringing together musicians associated with groups such as Zumpano, Destroyer, and the Evaporators. That collaborative lineup is why the supergroup description fits so well.

Musically, 'Mass Romantic' combines indie rock and power pop, drawing on the melodic traditions of the Beatles, Big Star, Cheap Trick, the Beach Boys, and T. Rex. Although it did not initially chart in Canada or the United States, strong reviews and a sold-out tour established the band's reputation.

The album received an official U.S. release in remastered form from Matador Records in 2003. Its only single, 'Letter from an Occupant,' followed in 2002 and became one of the group's best-known early songs.