Kanye West’s feud with Taylor Swift isn’t the first time -- and certainly won't be the last -- high-value money makers got into a public spat. If you’re not familiar with the feud, just take a look at Swift's acceptance speech during the Grammy’s last night.
Especially in the world of franchises, the competition can get even fiercer … and longer lasting. Still, it’s never personal, right? Just business.
Here are seven of our favorite business rivalries: