Lil Wayne has come under fire recently for his controversial lyrics in the remix to Future's "Karate Chop". In the song near 3:05, Wayne says he is going to "Beat the pussy up like Emmet Till".
Emmet Till was a 14 year old boy who was taken from his home and brutally beaten and murdered after he allegedly flirted with a white woman. Since his passing, he has become a prominent figure from the civil rights movement.
Upon the backlash from media and Till's family, Epic Records has issued an apology stating they had not heard the lyrics before it leaked and have since pulled the song and commercially re-released a censored version. Wayne himself has not made any statements or apologies in regards to the matter.
Sources: YouTube | Wikipedia