Remember when Avril Lavigne beat out Justin Bieber for the title of most famous Canadian? Miley Cyrus sure does, and she's jokingly pissed that she didn't land the No. 1 spot -- even though she's, um, not even Canadian. The 'Wrecking Ball' singer is so annoyed, in fact, that she hilariously duked it out with the reigning champ herself during her Bangerz Tour stop in Toronto last night (Mar. 31).