The Biggest Celebrity Feuds That We Haven't Let Go Of Yet

Sinead O'Connor & Frank Sinatra

Sinead O'Connor has a rule about not allowing any national anthems to be played before her shows, and when Frank Sinatra played the same arena the following night, he sang the national anthem and said "I'd like to kick her in the a--!" She later told Esquire Mag in 1991 that "I can't hit this man back, he's like 78 years of age, and I'd probably kill him."

The More You Know

People write love letters to trees in Australia via email.
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The unicorn is the national animal of Scotland.
The Canary Islands are named after dogs, not birds.

Post originally appeared on Upbeat News.