XX is a compilation by Great Big Sea to celebrate the band's 20th anniversary.

[1][2] It is the group's final album to date, as well as their last recording to feature Séan McCann.

[2] The XX Tour was a comprehensive tour which accompanied the release of this album, playing 38 shows across North America and featuring music from almost all previous Great Big Sea records.

This tour began on March 5, 2013, with a show at The Grove in Anaheim, California, and concluded a few minutes after midnight on January 1, 2014, after a final New Year's Day concert at Casino New Brunswick in Moncton.

Following the XX Tour, Séan McCann officially withdrew from the band.