In an example of a sample which went under the radar in the days before the internet, but caught the attention of the original rights holder after it was recently resampled, Barry White's estate is suing Rodney O and Joe Cooley for their 1987 hit, "Everlasting Bass".
Metro Boomin' sampled "Everlasting Bass" which uses an interpolation of Barry White's 1973 classic, "I'm Gonna Love You Just A Little More Baby" for "Like That". Released back in March, "Like That" (which features Kendrick Lamar) was one of the early shots thrown in the now legendary beef between Drake and Lamar.