North American dates start July 13.
Fellow Canadians Alanis Morissette and the Barenaked Ladies will co-headline their first tour together this summer.
Au Naturale starts July 13 at the Blossom Music Center in Cleveland and winds its way through 22 North American cities.
Promoted by several companies, including House of Blues Concerts and Clear Channel Entertainment, the major-market amphitheater tour wraps August 14 at Cincinnati's Riverbend Music Center.
Morissette, who is booked by Creative Artists Agency, is touring behind her release, "So-Called Chaos" due May 18 on Maverick.
The Little Big Man-booked Barenaked Ladies' "Everything to Everyone" came out on Reprise in October.
The pair will alternate closing performances.