The Line of Succession is the list of members of a royal family who in are eligible to inherit the throne. The list is in theory as long as the list of people in a royal family.
... 1982 Neil Young
1983 Glenn Gould
1986 Gordon Lightfoot
1987 The Guess Who[?]
1989 The Band
1990 Maureen Forrester[?]
1991 Leonard Cohen
1992 Ian and ...