Judging on how strict bill cosby was when it came to nothing negative why would he allow the rap song be involved in the last 2 seasons, he was the same man who fired cockroach for not getting a simple haircut and now cosby is dancing in a rap theme 3 years later lol ???

https://www.youtube.com/watch?v=n3eJkf4erbI
https://www.youtube.com/watch?v=n3eJkf4erbI
https://www.youtube.com/watch?v=n3eJkf4erbI
https://www.youtube.com/watch?v=n3eJkf4erbI