Biz Markie
After initially refusing to clear the sample for Biz Markie’s “Alone Again,” Gilbert O’Sullivan successfully sued Biz for $250,000 in damages in 1991. That’s the reason Biz’s subsequent album was named All Samples Cleared, and it’s also why you either clear samples ahead of time of cough up a portion of your publishing to the original musician. Or you can just distort the sample so much that nobody ever finds out what you sampled.