The government bought the rights to O Canada for $1

In the late '60s, the government sought to adopt O Canada as the national anthem. The music and original French lyrics had passed into the public domain, but the English version was still under copyright. The government settled the rights for a dollar.O Canada. The Canadian Encyclopedia. Helmut Kallmann and Gilles Potvin (2012).

Ironically, the copyright to the English lyrics would have expired anyways by the time the National Anthem ActNational Anthem Act. RSC 1985, c N-2. Canada (1980). was finally passed in 1980.