Final answer:
The hip-hop group that was called out by Prince for unauthorized sample use and later sued Fox for copyright infringement is Arrested Development. Legal disputes like these underscore the significant financial implications of copyright laws in the music industry.
Step-by-step explanation:
The hip-hop group that Prince called out in 1992 for using a sample of him singing the word 'Tennessee' without his permission is Arrested Development. This group is also known for suing the Fox network for copyright infringement. This case is a strong reminder of the importance and value of intellectual property rights in the music industry.
Such legal battles over copyright infringement can lead to substantial financial consequences. A notable example is when Marvin Gaye's family won over 5 million dollars from singers Pharrell Williams and Robin Thicke for plagiarism.